Two-time Wimbledon champion Petra Kvitova says she is “shaken, but fortunate to be alive” after being badly injured by a knife-wielding robber in her apartment Tuesday.

The Czech tennis star confirmed reports that she had suffered damage to the tendons and fingers of her left playing hand.

“I was attacked in my apartment by an individual with a knife. In my attempt to defend myself, I was badly injured on my left hand,” she said on her Facebook page.

“I am shaken, but fortunate to be alive. The injury is severe and I will need to see specialists, but if you know anything about me I am strong and I will fight this.”

Earlier, Czech police told CNN that the attack took place just before 8.30 a.m. CET in Kvitova’s apartment near the center of Prostejov, a small town about 160 miles from Prague where a number of Czech tennis pros live and train during the offseason.

“The attacker was a managed around 35 years, his identity is unknown and he is on the run. Police are working to determine what happened,” the police spokesperson said.

Karel Tejkal, the spokesman for the former world No. 2, told the state-run Czech Radio that “it looks like it was a random act and not a planned action.”

Local newspaper Prostejovsky Vecernik reported that the Kvitova endured “slashed tendons and fingers” on her left hand during the robbery.

The injuries were severe enough that Kvitova, who won Wimbledon in 2011 and 2014, was tended to by an emergency ambulance.

“We received a call this morning about an injured 26-year-old woman who suffered injuries to her hand. She was taken to a hospital in Prostejov in an ambulance,” an medical emergency spokesman in Prostejov confirmed.

One of the top left-handed players in the women’s game, Kvitova had recently announced her withdrawal from January’s Hopman Cup tournament in Australia due to a stress fracture in her foot.

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