Serena Williams expecting a baby this fall, rep confirms

Serena Williams is pregnant and due in the fall, a representative for the tennis star confirmed Wednesday.?

The 23-time major champion posted a photo of herself standing sideways with the caption "20 weeks" on Snapchat earlier Wednesday, then deleted it.

Williams, 35, did not comment beyond the photo and two-word caption.

Williams hasn't played since winning the Australian Open in late January. She pulled out of her next two scheduled events -- Indian Wells and Miami -- citing a left knee injury. Her only other tournament this year was in Auckland, New Zealand, where she lost in the round of 16.

Tennis' next major event is the French Open, which begins May 28. If Williams is 20 weeks pregnant, she would be due in early September.