After winning 88 tour-level titles, Roger Federer still finds ways to experience new heights on the ATP World Tour.

On Monday, the World No. 3 ascended to the roof of the tallest residential building in downtown Stuttgart, the brand-new Cloud No 7 building 60 metres high. Federer hit balls with longtime friend Tommy Haas, who’s from Hamburg.

The Swiss legend is returning to tour-level play this week at the MercedesCup in Stuttgart after withdrawing from Roland Garros because of a back injury. It will mark the first time he’s played at the event, which switched from clay to grass last year and kicks off this year’s grass-court campaign.

“I actually quite enjoy it. I like to see nice views,” Federer said atop the residential building that also serves as a first-class hotel. “It’s nice to be in the city centre and doing such an activity and officially launching the tournament.”

Federer last played in Stuttgart 15 years ago but at a completely different event. “It’s nice to be back in a different context, doing something very cool,” he said.

The 34 year old said he’s enjoyed the past couple weeks away from the game. The break allowed him to rehab his back and spend more time with his wife and four children. Federer, the top seed, receives a bye in the first round and is scheduled to play #NextGen star Taylor Fritz or French qualifier Fabrice Martin in the second round.

Federer, who’s won 15 grass-court titles, also laid out his expectations for the week. “A good week is if I get on the match court and I play a match. A great week is if I get to the semis, and a dream one would be to win the tournament,” he said. “Crazier things have happened. I think everything’s possible this week. At the moment I step on the grass court and I’m feeling somewhat fine, I will have my chances and I’m looking forward to that challenge.”

Haas, meanwhile, is trying to get back into playing shape. The former World No. 2 underwent surgery to repair a torn ligament and a ligament-like structure in his right foot in April. It was his ninth operation in the past 20 years. “I’ve had so many injuries. I’ve been away for so long so many times. In a way, I’m a little bit used to it,” he said.

Hitting with Federer on the roof and seeing the lush grass courts at the TC Weissenhof, the tournament site, tugged at Haas’ competitive fibers. “But I also know what it means to go out there and play and try to prepare, try to feel fit, not only physically but also mentally,” he said. “I haven’t done that much in the last two years so I know it would also be very hard work.”

The 38 year old wants get healthy enough for one final comeback. “Hopefully I can play a few more events and say goodbye to my career in my own terms,” he said. “That’s my goal but it’s still a big question mark.”

Haas, who has won 15 tour-level titles, already has his future venture planned. On Friday, he was named the tournament director at the BNP Paribas Open in Indian Wells. [The appointment is subject to ATP and WTA Board approval.]

Berrer, Groth Advance At Stuttgart

Two main-draw singles matches took place on Monday. Stuttgart’s Michael Berrer came back to beat Malek Jaziri of Tunisia 6-7(7), 6-2, 6-4. Big-serving Aussie Sam Groth also moved into the second round. Groth hit 15 aces to beat Illya Marchenko of Ukraine 7-5, 6-4.

Karen Khachanov stands several metres behind the baseline, staring down the barrel of a first serve. The crowd’s anxiety is a stifling haze of pressure and expectation, but young Karen is not fazed. So deeply embedded in the moment, if you look closely, roots can be seen burrowing from the 17-year-old’s legs into the Olympic Stadium foundation below.

Break point. Convert this and serve for the match. But this is not just any ordinary match. A berth in the quarter-finals of his hometown ATP World Tour event in Moscow is on the line. At No. 808 in the Emirates ATP Rankings, it is just his second professional event at any level. His opponent, Janko Tipsarevic, is the third seed, 2011 champion and a former Top 10 player. Was it mentioned that Karen is only 17?

A 120 mph (194 km/h) serve is launched down the T. Karen’s reply is devastating. He takes one step to his right and sends a forehand return careening down the line. The ball slams into the back wall with a thud. Game, Khachanov. The scorched hard court is screaming, the crowd is screaming, the tennis world is screaming. A dam of adrenaline is on the verge of spilling over as he gives a subdued fist pump to his box. He saunters to his chair, his focus affixed on the task at hand: serve it out.

Five points later, Karen is screaming.

The arena erupts in a deafening chorus of cheers as their native son becomes the first 17 year old to reach an ATP World Tour quarter-final in six years. The legendary heavy metal rock band Deep Purple performed the following week at Olympic Stadium and there’s a good chance the echoes from tennis fans were still ringing.

Karen’s Top 100 Ascent
For many developing talents, immediate success at such a ripe age is a launching pad that leads to wild cards into big events, as the player is directed into a perceived accelerated path to stardom. For Karen, however, it was important to allow his game to mature on his own terms, while trusting in the process. His breakout success on a big stage was merely a taste of what’s to come.

“There were expectations and I felt that after I made the quarter-finals it was going to be easy to beat a lot of the guys on the ATP World Tour, but it was not,” Khachanov said in an exclusive interview with ATPWorldTour.com “I wasn’t ready to do it more consistently. That’s why it took me longer to find my game and play better. You just have to pass through these stages and trust that you will find it. Somebody gets there longer, somebody has it slower.”

Khachanov, who celebrated his 20th birthday two weeks ago, has become the latest Next Generation player to break into the Top 100 of the Emirates ATP Rankings. Two and a half years after he first announced himself to the tennis world, the Russian has arrived. Armed with a lethal shotmaking arsenal, predicated on a fierce forehand and imposing serve, he has seen his position in the Emirates ATP Rankings soar nearly 150 spots in the past year. Up to No. 98 following a semi-final run at the ATP Challenger Tour event in Prostejov, Czech Repubic, the only direction is up for the Moscow native.

“It feels great, because I achieved one small step in my career. I hope there will be bigger goals and I will achieve them as well. It’s a great start to get to the top of men’s tennis. It motivates me to work more and get even better. I don’t usually like to talk about goals. I’d rather concentrate on the work I have to do and then I will see what I achieved and how it paid off.

“I have been more focused on passing through the stages by myself without help from wild cards (into ATP World Tour events). I’m trying to go through it step by step. It was a long process. Last year, I won three Futures titles in a row and then my first Challenger in Istanbul and my ranking got higher. This year, I’m playing bigger tournaments.”

Khachanov’s trust in the process has seen him travel the world on the ATP Challenger Tour since his breakout run at the VTB Kremlin Cup, amassing 50 match wins across 15 countries. His maiden title would come on the hard courts of Istanbul last year, rallying from a set down to upset top seed Sergiy Stakhovsky in the final, before notching a second crown on the clay of Samarkand, Uzbekistan (d. Ramirez Hidalgo).

Now based in Barcelona, Khachanov has spent two years under the tutelage of Galo Blanco at the 4Slam Tennis Academy. In April, the 6’6” right-hander entered qualifying at the ATP World Tour 500 event in his newly adopted hometown and would battle through a pair of three-set matches to secure his spot in the main draw. Then, a big moment arrived. The 20 year old scored his first main draw match win on the ATP World Tour since his breakthrough run in Moscow in 2013, beating Aljaz Bedene. But Khachanov wasn’t satisfied. One day later, he would claim another milestone in stunning World No. 17 Roberto Bautista Agut for a berth in the Round of 16. He was made to work in yet another three-set affair, notching his first win over a Top 20 opponent.

“It was a big result. It felt great to win a match at the ATP level again. I had the best feelings at that moment. Mentally I was ready for the match and I was thinking that I had to stay calm and not let in negative emotions. That’s what I did, even after I lost the second set. I kept going and I got the win. It was the biggest win of my career.”

Blanco says it is just the beginning of a great career for his pupil and believes that with continued hard work and maturity, nothing can stop him.

“The goal we have is to be better every day and then the rest will come,” said Blanco, a former coach of World No. 9 Milos Raonic. “He’s really humble and friendly. A funny kid too. In the end, the good thing is that there is room to improve in all areas of his game. He didn’t play many big tournaments yet, because I want him to go through all the levels and earn his ranking by winning on all surfaces. I hope that when he starts playing the big tournaments he will have the level to compete with everybody.”

Eyes On The Road Ahead
Khachanov, who idolised Juan Martin del Potro and countryman Marat Safin for their charisma, aggression and power, is always looking to better himself both on and off the court. In pursuit of a degree in physical education, he takes online classes from a Russian sport university when on the road at tournaments and in training in Barcelona. While he understands that his tennis career is his top priority, the son of an international businessman (father Abgar) and neurologist (mother Natalia) admits that there are no guarantees in life and achieving a higher education is essential.

“During tournaments I read and study, but it’s not too difficult. It’s important to have a diploma. I want to educate myself and learn more about the body. I do it for myself. It does help me a bit with my training. I studied biology and it’s important to know your body.”

Now, even with a shiny new Top 100 spot in the Emirates ATP Rankings, Khachanov remains focused on the process. A pair of ATP Challenger Tour events in Moscow and Poprad Tatry, Slovakia, await, followed by a second appearance in Wimbledon qualifying.

One of six #NextGen stars in the Top 100, joining Nick Kyrgios, Alexander Zverev, Borna Coric, Taylor Fritz and Kyle Edmund, he is already looking forward to many future battles against the rising contingent. The #NextGen group also includes compatriot and close friend Andrey Rublev, who trains in the same academy in Barcelona. Khachanov is quick to point out that while everyone has their own path, he uses their success as motivation to work even harder.

“We all have our own style and I have my advantages and weaknesses that I have to improve on. It motivates me, because we will hopefully compete against each other. I am happy for them that they are doing well, but hopefully we can all be closer to the top soon.”

For the majority of players winning a Grand Slam, a Barclays ATP World Tour Finals or ATP World Tour Masters 1000 title remains just a dream. For a handful of players, who become serial winners, they become giants of the sport.

On Sunday, Novak Djokovic added to his ‘Big Titles’ haul. The World No. 1 etched his name in the history books with his first Roland Garros title, to become only the third player – after Don Budge (1938) and Rod Laver (1962, 1969) – to hold all four major championships at the same time. He is also the eighth player to complete the career Grand Slam.

By capturing his 12th Grand Slam championship crown, Djokovic is now just one trophy behind record-holder Roger Federer with 46 ‘Big Titles’. A five-time Barclays ATP World Tour Finals champion, Djokovic has by the far the best conversion rate of any player, past or present, winning one Big Title for every 3.15 events played at this level.

While Federer still leads the field with 47 Big Titles, including 17 Grand Slams and six Barclays ATP World Tour Finals (both records), he is third all-time with 24 Masters 1000 crowns. The Swiss has played 203 tournaments at this level, averaging one title for each 4.3 events played.

Rafael Nadal, who is currently sidelined by a wrist injury, also boasts an exceptional strike rate, winning one Big Title for every 3.5 appearances. He is joint second all-time (with Pete Sampras) for most Grand Slam titles won with 14, and outright second all-time for most Masters 1000 titles won with 28 crowns, just one behind Djokovic’s record haul.

Andy Murray, who lost to Djokovic in the Roland Garros final, has won 14 Big Titles – 12 Masters 1000s, including at last month’s Internazionali BNL d’Italia (d. Djokovic), and two majors. Murray, who has competed in the same era as Djokovic, Federer and Nadal, wins one Big Title for every 9.7 tournaments played.

Since the ATP World Tour Masters 1000 series launched in 1990, Sampras has been the only player to rival the ‘Big Titles’ strike rates of Djokovic, Nadal and Federer. A winner of 14 Grand Slam titles and five Barclays ATP World Tour Finals, the six-time year-end World No. 1 averaged one Big Title per 4.9 tournaments played.

One other player whose strike rate is in single figures is Andre Agassi, who at one time was the record Masters 1000 title holder with 17 titles, including six Miami crowns. Agassi also won eight majors and one season finale. His 26 ‘Big Titles’ from 164 tournaments played came at an average of one title per 6.3 events played.

Those historical averages put in perspective the utter dominance Djokovic has displayed in his past 22 outings at this level dating back to the 2014 BNP Paribas Masters in Paris. During that time the Serb has won one Big Title for every 1.29 events he’s played, going 5 of 6 at Grand Slams, 10 of 14 at Masters 1000s and 2 for 2 at Barclays ATP World Tour Finals.

Current and Former Champions (Records Since 1990)

Current Top 10

Nicolas Mahut is the new No. 1 in the Emirates ATP Doubles Rankings, replacing Brazil’s Marcelo Melo at the summit of the team game.

After weeks of no comment, in the end the prospect of becoming the 49th doubles No. 1 was taken out of Mahut’s hands. On Saturday, as Marc Lopez and Feliciano Lopez beat Bob Bryan and Mike Bryan for the Roland Garros title, Mahut was 288 miles away preparing for his singles title defence at the Ricoh Open in ‘s-Hertogenbosch.

“I watched the match on television, at the end of the second set I thought the Bryans would win,” Mahut told ATPWorldTour.com. “But the broadcast ended and I then followed the score on the internet and via relatives.”

Guy Forget (No. 3), Michael Llodra (No. 3), Julien Benneteau (No. 5), Henri Leconte (No. 6) and Fabrice Santoro (No. 6) were all never able to follow in the footsteps of Yannick Noah, the last French player at No. 1 in August 1987. Today, officially, it’s Mahut’s fate.

“There was a mixture of pride and fulfillment on learning that the Spaniards had won,” said Mahut, who has been in sensational form this year with partner Pierre-Hugues Herbert. “Although it’s not the same as singles, you’re the first in your discipline. I realise how hard it is to become No. 1. [Mika] Llodra, Santoro and other great French champions did not make it. It’s a special feeling.”

After dinner with Paul-Henri Mathieu on Saturday night, Mahut was able to call his wife, Virginie, and former players and coaches, who had been part of the journey. “Now that it’s done, it will free us,” said Mahut. “Unconsciously, it added more pressure. Pierre-Hugues and I can start over and look to tournament goals again.”

Over the past 18 months, Mahut and Herbert have reached eight finals, captured the 2015 US Open (d. Murray-Peers) and recently won three straight ATP World Tour Masters 1000 trophies at the BNP Paribas Open (d. Pospisil-Sock), the Miami Open presented by Itau (d. Klaasen-Ram) and the Monte-Carlo Rolex Masters (d. Murray-Soares).

It could have been so different. Mahut’s career falls into two chapters: pre- and post- ‘The Longest Match’.

It’s now almost six years since Mahut was the valiant loser against John Isner in an 11-hour, five-minute three-day record-breaking match at 2010 Wimbledon. It brought instant recognition for both players, a high point for Mahut, 10 years on from an excellent junior career.

But what next?

“Nicolas had a career before his match against Isner at Wimbledon and a second career after that match,” good friend Fabrice Santoro told ATPWorldTour.com. “Even though he lost that one, people started to talk about this completely crazy match. And that loss gave him confidence.”

For a long time, ice packs compressed onto Mahut’s knees or elbows were a regular sight at tournaments. The problems hindered his progress, but the smart and amiable Frenchman never gave up. With the birth of his son, Natanel, in August 2011, also came the death of a nephew. Yet he continued to graft.

Since turning 30, the classic serve-volleyer has picked up three ATP World Tour grass-court singles titles and 11 doubles crowns. Questions about 2010 Wimbledon have subsided.

Today, at 34 years of age, Mahut adds another line to the history books: a Frenchman at No. 1 in the Emirates ATP Doubles Rankings. Congratulations, Nico.