Rising American star Madison Keys is now working with former world No.1 Mats Wilander.
The pair have teamed up for the first time at this week’s Miami Open.
Wilander, a seven-time Grand Slam champion, has told Swedish media he sees a lot of potential in his 21-year-old charge.
“First and foremost, it’s about her playing more varied,” he said. “She and Serena Williams hit the hardest for the ladies, but I want to get Madison to get some more top spin in her forehand than what she has now.
“I want her to use her serve better. She has good first and second serve. With her technique and strength, she can widen the track more than the other girls can. It is not about hitting aces, but knowing how to use the serve to set up the score. It was exactly what (Boris) Becker got (Novak) Djokovic to think about when they began working together.”
Keys is the No.22 seed in Miami and opens her campaign against Belgian Kirsten Flipkens.
She has previously been coached by another former world No.1 in Lindsay Davenport, before working with former pro Jesse Levine earlier this season.
Wilander has previously coached Marat Safin, Paul-Henri Mathieu and Tatiana Golovin.
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