Maria Sharapova hits back on return from drug ban and after beating Vinci

• Former world No1 overcomes Italian 7-5, 6-3 in Stuttgart• Sharapova refuses to say if she has an alternative medication Maria Sharapova refused to reveal if she will be seeking an alternative medication to the drug that got her banned from tennis for 15 months after marking her controversial return to competitive action by beating Roberta Vinci in the first round of the Stuttgart Open on Wednesday night. While the Russian was quick to admit her guilt after testing positive for meldonium at...