Angelique Kerber has questioned whether Maria Sharapova should be allowed to start her comeback from an anti-doping suspension in Stuttgart, where the Russian has been given a wild card.
Kerber, like Sharapova, is sponsored by Porsche, which is also the title sponsor of the tournament in Stuttgart (Porsche Tennis Grand Prix).
The German, speaking at a pre-event press conference in Indian Wells, called Sharapova's entry into the tournament "a little bit strange," given that she will still be suspended until the third day of the tournament. Sharapova has been scheduled to play her first-round match on the third day, and as anti-doping rules require, would not be allowed to enter the tournament grounds until that day.
Kerber suggested that others on the WTA tour were asking whether the rules were being bent for the former No. 1.