Serena Williams pulls out of US Open, citing torn hamstring

(AP) – Serena Williams has added herself to the list of big-name withdrawals from the U.S. Open.

She pulled out of the year’s last Grand Slam tournament because of a torn hamstring. Williams hasn’t competed since injuring her right leg during her first-round match at Wimbledon in late June.

The American joins Roger Federer and Rafael Nadal in sitting out the competition in Flushing Meadows.

Williams, who turns 40 next month, owns 23 Grand Slam titles. The draw for the U.S. Open is tomorrow. Play begins next Monday.