Serena Williams withdrew from the U.S. Open on Friday, saying she is still recovering from surgery to repair cuts on her right foot. The top-ranked Williams has won three titles at Flushing Meadows, part of her 13 Grand Slam singles championships, the most among active women. Last year, she lost in the U.S. Open semifinals after a tirade at a line judge over a foot-fault call, an outburst that drew a record fine. Read more: http://sports.espn.go.com/sports/tennis/usopen10/news/story?id=5480178
