Former Wimbledon champion Sharapova joins line-up at Nature Valley Classic (April 18, 2018) Five-time Major champion Maria Sharapova is set to return to Birmingham in June, joining reigning Wimbledon champion Garbine Muguruza, defending Nature Valley Classic champion Petra Kvitova, British No.1 Johanna Konta, rising star Naomi Osaka and a host of other big names at … [Read more...] about Muguruza, Sharapova, Kvitova and Osaka to Play WTA Birmingham