Andy Roddick retiring from tennis after U.S. Open
"I've decided that this is going to be my last tournament," he says in a press conference. "I just feel like it's time."
"I don't feel like I'm healthy enough or committed enough to go another year," he adds.
The last American man to win a Grand Slam title, Roddick has won more than $20 million in his career and is currently ranked No. 22 in the world. He is scheduled to play a second-round match at the U.S. Open on Friday against Australia's Bernard Tomic.