LONDON - Maria Sharapova might have to wait until June 20 to see if she will be welcomed back to Wimbledon this year.

Sharapova, the 2004 champion at the All England Club, returned to the WTA Tour last week after serving a 15-month ban for doping and reached the semifinals in Stuttgart, leaving her ranked No 262.

The Russian's return has sparked controversy on the tour, with some rivals saying she has been given preferential treatment.