Ons Jabeur had been forced to withdraw from the Zhengzhou Open due to a knee injury.

The World No. 7 had defeated Lucia Bronzetti 6-3, 7-6 (5) in her first-round match at the WTA 250 tournament, where she was the fourth seed. Her opponent saved four match points in the clash, but Jabeur was ultimately able to convert the fifth.

The Tunisian player was then set to take on eighth seed Daria Kasatkina in the quarter-finals. They have faced each other seven times in the past, with Jabeur leading their head-to-head 5-2. However, she was forced to withdraw ahead of the clash.

In a video, Jabeur explained the situation to her fans.

"Hi everyone, so sorry that I have to withdraw because my knee is not feeling so great [...] I just want to say I loved my time here in Zhengzhou and hopefully I can come back next time. Thank you for the fans for cheering for me and [I] hope to come back next year," she wrote.

The 29-year-old proceeded to echo this sentiment in a statement released on her Instagram page.

"Loved playing in Zhengzhou, but my knee won't let me continue. Massive thanks to the Chinese fans and everyone who supported me, I'll be back next year," she wrote.

Jabeur has had a mixed time on the Asian Swing this season. She won the Ningbo Open, defeating Diana Shnaider in the final 6-2, 6-1. However, she was eliminated in the second round of the China Open in Beijing last week, where she lost to Marta Kostyuk in straight sets.

Jabeur is set to compete in her home country of Tunisia next week at the WTA 250 Jasmin Open Monastir.