| By Long Island Tennis Magazine Staff

World number one Serena Williams announced on Tuesday that she will be withdrawing from this week’s BNP Paribas Open in Indian Wells as well as the Miami Open due to a left knee injury.

“Sadly, I have to withdraw from the BNP Paribas Open in Indian Wells and the Miami Open,” the reigning Australian Open champion said. “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.”

With the withdrawal, Germany’s Angelique Kerber will reclaim the top ranking in the world.

According to the WTA, this is how Serena’s absence will affect the Indian Wells draw this week.

3rd seed Karolina Pliskova takes Serena’s spot.

5th seed Dominika Cibulkova takes Pliskova’s spot

9th seed Madison Keys takes Cibulkova’s spot

13th seed Caroline Wozniacki takes Keys’ spot

17th seed Barbora Strycova takes Wozniacki’s spot

25th seed Timea Babos takes Strycova’s spot

33rd seed Daria Kasatkina takes Babos’ spot, resulting in American Taylor Townsend will play a lucky loser in the first round