Maria Sharapova withdrew from Wimbledon after failing to recover from a thigh injury, dealing another blow to the superstar's bid to rebuild her career following a doping ban.The 30-year-old Russian, who was champion at the All England Club in 2004, was due to play in the qualifying event. The former world number one returned from a 15-month doping ban in April but has relied on wild-cards to get into tournaments because her world ranking points expired while she was banned.At the moment the five-time Grand Slam title winner is ranked at 178.