World No. 1 Serena Williams has withdrawn from the BNP Paribas Open due to a left knee injury.
"Sadly, I have to withdraw from the BNP Paribas Open in Indian Wells and the Miami Open," Williams said in a statement. "I have not been able to train due to my knees and am disappointed I cannot be there. I will keep moving forward and continue to be positive. I look forward to being back as soon as I can."
The two-time champion in Indian Wells was a finalist a year ago after making the semifinals in 2015 having returned to the event after a 14-year hiatus.
The women’s draw, which was made on Monday, will be reshuffled, moving world No. 3 Karolina Pliskova, who was on the same side of the draw, to Serena’s slot and pushing No. 5 seed Dominika Cibulkova into Pliskova’s spot. The updated draws are available.
Williams, 35, made history in January when she won an Open era record 23rd Grand Slam by capturing her seventh Australian Open. She was champion in Indian Wells in 1999 and 2001.
The WTA main draw gets underway on Wednesday, with the top 32 seeds receiving byes.
World No. 2 Angelique Kerber will take over the No. 1 spot in the world after this year's BNP Paribas Open regardless of how she finishes due to Williams losing her finalist points from 2016. Kerber is a two-time semifinalist, though she lost in the second round here a year ago.