German tennis player Sabine Lisicki has confirmed that she will not play again this season due to a knee injury.
The 26-year-old, who finished as runner-up at Wimbledon in 2013, played through the injury at the US Open earlier this month.
In the Grand Slam, Lisicki made it to the fourth round before losing to Simona Halep at Flushing Meadows.
On her official Facebook page, Lisicki wrote: "Like most of you know I've been struggling with a knee injury before and during the U.S. Open. Ever since I got back to Germany I've been taken care of by Dr Muller Wohlfahrt and now Klaus Eder who have tried everything in order to get me ready for the Asian swing, but unfortunately my knee is not ready and I will not compete at tournaments this season.
"I have great support from my team and we are eager to get me back on the court asap. At the latest at start of next season."
Reaching the Wimbledon final two years ago is the only time that Lisicki has made a Grand Slam final so far.