Tennis Star Petra Kvitova of the Czech Republic was injured Tuesday morning when an unidentified man armed with a knife attacked her at her home in Prostejov, Czech Republic. The two-time Wimbledon champion has sustained injury in her left hand and undergoing a medical treatment. It is reportedly learnt that she underwent surgery to help repair the ligaments and tendons in her hand. The doctors, in the hospital, said she is doing fine but denied to talk further. The 26-year-old tennis star is yet to react over the incident.