LONDON - As Maria Sharapova posed with the French Open trophy against the breathtaking backdrop of the River Seine and the Eiffel Tower, the Russian's thoughts turned from her stunning surroundings in Paris to a small patch of grass in south-west London where she hopes to cap her remarkable return to the top. Sharapova's victory over Sara Errani in the Roland Garros final earlier this month was a cathartic moment for the 25-year-old, who had gone four years without winning a grand slam as she struggled with the aftermath of serious shoulder surgery. Her gruelling journey back to grand slam glory, and the world number one ranking she now holds for the first time since 2008, is a testament to Sharapova's fierce competitive instincts, but she has never been one to rest on her laurels. So, while the flashblubs and champagne corks were still popping in Paris in celebration of her career grand slam, Sharapova was already plotting a Wimbledon revenge mission. Just 12 months ago, Sharapova suffered one of the more surprising defeats of her career as Petra Kvitova of the Czech Republic romped to a 6-4, 6-3 Wimbledon final victory.