Jean-Julien Rojer collected the 350th doubles win of his career Friday when he teamed with Horia Tecau at the Miami Open to defeat recent Indian Wells champion Jack Sock and Nicholas Monroe 6-1, 7-6(2).

Rojer, 36, claimed the first of his 26 titles in 2010 in Tokyo.

In another result of significance, American duo Steve Johnson and Sam Querrey upset top seeds Lukasz Kubot and Marcelo Melo 6-4, 7-6(0). Since beginning the year 7-1, including a title in Sydney, last year’s No. 1 team has gone 2-4 in its past four outings, including back-to-back first-round losses in Indian Wells and Miami.

Eighth seeds Juan Sebastian Cabal and Robert Farah defeated Aussie duo Nick Kyrgios and Matt Reid 7-5, 7-5.

Watch all doubles matches live online

Juan Martin del Potro extended his winning streak to 12 matches with a 6-4, 5-7, 6-2 win over Robin Haase to kick off his quest to complete the ‘Sunshine Double’ at the Miami Open on Friday night.

But things won’t get any easier for the the World No. 6 Argentine, who last week won his first ATP World Tour Masters 1000 title in Indian Wells. Del Potro will face former US Open finalist Kei Nishikori in the third round after the Japanese beat Australian John Millman 7-6(4), 4-6, 6-3.

Del Potro said that he would need a much better effort to beat Nishikori. “It was a terrible match for me even though Robin played well,” he said. “It was a very difficult first match of the tournament for me. I’m still alive and that’s important. But I need to improve my tennis, my physicality and my mind if I want to go further. My body started to feel tired but I will have some time now to recover.”

Playing his first match in almost a month since his first-round loss in Acapulco to Denis Shapovalov, Nishikori said that the difficult nature of today’s win was a boost. “I’m happy to win; it wasn’t an easy match,” he said. “I didn’t play the past two weeks, so I had to get used to playing points again, but in the third set I thought I played well. I am feeling very good and playing with intensity for three hours today is good for my confidence.”

Did You Know?
Del Potro improved to 5-0 lifetime against Haase with Friday night’s win in Miami.

Portugal’s Joao Sousa recorded the fourth Top 10 victory of his career (4-26 lifetime) on Friday for a place in the Miami Open presented by Itau third round. The 29-year-old required 61 minutes to beat Belgium’s David Goffin, currently No. 9 in the ATP Rankings, 6-0, 6-1.

“I think I played a great match today,” said Sousa. “I was able to play my best tennis from the beginning. For sure, David was not able to play his best tennis today. I know how tough it is coming from an injury that he had a few weeks ago. I’m really happy that I was able to play great tennis. It’s not easy to play against these kinds of players. They are very good. So yeah I’m very happy I can enjoy this victory a lot today.”

Sousa won the last 15 points of the first set against Goffin, who is returning from an eye injury sustained during the ABN Amro World Tennis Tournament in February and had won all four of their previous FedEx ATP Head2Head meetings. Sousa, now one away from 150 victories, will next challenge American Jared Donaldson or No. 25 seed Feliciano Lopez of Spain. Two weeks ago, Sousa beat No. 5-ranked Alexander Zverev en route to the BNP Paribas Open third round.

“It’s great. I’ve been playing very good tennis for the past two weeks. As I say, I played one of my best matches of my career today. Even if David was not very well… I’m enjoying playing tennis a lot. It is great to play against these kinds of guys and try to win, and I was able to do it for the past two weeks. Hopefully, I can keep playing good tennis and keep providing some surprises.”

 Watch Full Match Replays

But Sousa was not the only one to earn a big win Friday. #NextGenATP American Michael Mmoh, a qualifier, had never won a main-draw ATP World Tour Masters 1000-level before arriving in Miami. Yet, despite dropping eight consecutive games after he was up a set and 2-0, Mmoh defeated No. 12 seed Roberto Bautista Agut 7-6(4), 2-6, 6-4 in two hours, 45 minutes. 

It was Mmoh’s first match against a Top 20 player, and for a moment, it appeared he had lost his opportunity. Bautista Agut ran down two overheads while serving at 4-5 15/30 in the deciding set, and Mmoh missed the third smash long. Instead of holding two match points, it was 30/30. But the 20-year-old, like he did after losing eight games in a row, maintained his focus to earn the best victory of his career. 

Prior to the season, Mmoh had never won an ATP World Tour match. But the American qualified and then triumphed twice at the Brisbane International presented by Suncorp, including his first Top 50 victory against Mischa Zverev, to advance to the quarter-finals. Mmoh will look to continue his dream run in Miami against reigning Next Gen ATP Finals champion Hyeon Chung or Australian Matthew Ebden. 

Did You Know?
Mmoh had not won an ATP World Tour match prior to the 2018 season. He now has four triumphs, including his first two ATP World Tour Masters 1000-level victories.