Maria Sharapova burst on to the world tennis stage after winning Wimbledon at the age of 17 in 2004. She went on to become the world's highest paid female-athlete and won another 4 Grand Slams. But in 2016 her career came crashing to a halt when she was given a 15 month ban from tennis for doping. Having served that ban - Sharapova is back on the tennis circuit. In a BBC News special Laura Trevelyan speaks to the tennis star about her career, and route back to redemption. Show less