Prostejov (Czech Republic), March 22 (IANS): Czech tennis star Petra Kvitová has revealed that she has been working hard on her recovery from the left arm injury she suffered after being attacked by a knife-wielding assailant in her home here on December 20.

The two-time Wimbledon champion received stab wounds in her left arm and the 26-year-old had to undergo surgery on December 21.

In a Facebook post on Tuesday, she gave her fans an update on her future. But she didn't give any date for her return to action.

"Hi guys! I wanted to say hello since time is flying by -- three whole months already since the attack -- and let you know that I'm working really hard on my recovery. I still can't tell you when I will be back, but I can tell you that tennis is a huge motivation for me and I realised while I've been away how much I like challenges," she posted on Facebook.

"My perspective on life has changed a lot and I am doing everything to give myself a second chance to be back on the court. I thank you for staying with me through this and I hope to see you all soon, love Petra."