NEW YORK -- Florian Mayer has pulled out of the U.S. Open.
The 62nd-ranked German hasn't played since March, when he withdrew from his match against Novak Djokovic at Key Biscayne because of a groin injury. He missed the French Open and Wimbledon. His withdrawal from the U.S. Open was announced Thursday.
The 30-year-old Mayer's best Grand Slam finish was twice reaching the quarterfinals at Wimbledon. He has never advanced past the third round at Flushing Meadows. Mayer has been ranked as high as 18th.