I thought Sharapova has already improved her service. It has remained her Achilles heel. It was more apparent during her Wimbledon Women Finals game against Petra Kvitova who went on to win her first Wimbledon title. If Sharapova could just be consistent with her serves, she could’ve had her Wimbledon this year. She was strong, fast and tenacious with her plays but her services were like mine. LOL! Mine could get wayward and unreliable when it was the important time to be just the opposite. Anyway, perhaps the next Wimbledon will be for Sharapova.