Kiki Bertens, who reached the final in Madrid, is up to a career-high No. 15 and getting noticed by her fellow WTA players.
The two-time Grand Slam champion Petra Kvitova, who defeated Bertens in a long three-setter to win Madrid, says she has a terrific forehand and tremendous variety, which explains her success on clay.
“When she's playing Roland Garros, always playing great," said Kvitova, speaking to press following the final at Madrid. "Obviously she has a forehand with a lot of topspin, which is [putting the opponent] so much behind the baseline. It's pretty difficult to make some pressure to her. She can do whatever she wants.
Match point from Alexander Zverev's win over Dominic Thiem in the Madrid final: