FILE - In this July 11, 2015, file photo, Serena Williams, of the United States, holds up the trophy after winning the women's singles final against Garbine Muguruza, of Spain, at the All England Lawn Tennis Championships in Wimbledon, Prize money at Wimbledon is increasing 5 percent this year, with the men's and women's singles champions to receive 2 million pounds ($2.9 million). Organizers announced Tuesday, April 26, 2016 that total prize money for the grass-court Grand Slam is going up to 28.1 million pounds ($40 million). The prize for the singles champions has been raised by 6.4 percent, or 120,000 pounds ($175,000). (AP Photo/Kirsty Wigglesworth, File)
The Associated Press
MADRID (AP) - Serena Williams will miss the Madrid Open because of illness.
The tournament says Williams won't be able to play at the tournament that starts this weekend because of a fever that has left her feeling "less than 100 percent."
Williams won the Madrid Open in 2012 and 2013.
Agnieszka Radwanska will take William's place as the top-seeded player.