She was attacked at her home in the Czech Republic
Two-time Wimbledon champion Petra Kvitova has been injured in a knife attack at her home in the Czech Republic.
Karel Tejkal, a spokesperson for the player, says she suffered an injury to her left hand and has been treated by doctors.
The incident is being described as a burglary on Tuesday morning in the eastern Czech town of Prostejov.
Mr Tejkal told Czech news agency CTK: "It was a random criminal act. She was assaulted in her apartment and is in the care of doctors, but her injuries are not life threatening."
Mr Tejkal reported the burglar has yet to be apprehended.
Czech media has reported the assailant made off with 5000 Czech Koruna (£155).
Ms Kvitova is currently recovering from a fractured foot and recently withdrew from the Hopman Cup mixed-team tournament in January.
Earlier this year, she won bronze at the Olympic Games in Rio after beating Madison Keys.
Thank you for all your messages. As you may have already heard, today I was attacked in my apartment by an individual with a knife— Petra Kvitova (@Petra_Kvitova) December 20, 2016
In my attempt to defend myself, I was badly injured on my left hand. I am shaken, but fortunate to be alive. The injury is severe and I will— Petra Kvitova (@Petra_Kvitova) December 20, 2016
need to see specialists, but if you know anything about me I am strong and I will fight this. Thank you all again for your love and support— Petra Kvitova (@Petra_Kvitova) December 20, 2016