Andrea Petkovic is no longer being coached by Eric van Harpen, following a successful season that saw her return to the Top 20 and reach her first Grand Slam semifinal. Möchte mitteilen das ...

Serena Williams' ex-coach, Rennae Stubbs, and former WTA pro, Andrea Petkovic, recently discussed whether Serena Williams in her prime years would've been taken to the distance by a "peak" Aryna ...