SINGAPORE – Svetlana Kuznetsova is a woman of many talents. Top 10 tennis player, designer, polyglot, rapper and now hairdresser.

Midway through the final set of her round-robin encounter with Agnieszka Radwanska, Kuznetsova realized something was not quite right: her haircut.

Trailing 2-1, the Russian took out her frustration with scissors, lopping off her ponytail during the changeover. The change had the desired effect, too, inspiring Kuznetsova to break back in the following game and go on to win the match.

Kuznetsova is not the first player to get an impromptu trim in the heat of battle. At last year’s ATP World Tour Finals, Andy Murray famously took a pair of scissors to his unruly mane…