American Andy Roddick announced on Thursday that he will retire following the 2012 U.S. Open.

"I have decided that this is going to be my last tournament," Roddick said. "I don't know if I'm healthy enough or committed enough to continue another year."

Roddick, who turned 30 on Thursday, captured his lone Grand Slam title at the 2003 U.S. Open and was the 2006 runner-up in New York.

For his career, Roddick has 32 ATP singles titles, including two this year. He also holds four doubles titles.

A three-time Wimbledon finalist (2004-05, '09), Roddick held the No. 1 spot in the world for the first time in November 2003, becoming the youngest American (21 years, 3 months) to end the year at No. 1.

Roddick, who has struggled with injuries over the past couple of years, leaves the game with 33 Davis Cup singles victories, second all-time in U.S. Davis Cup team history.

"I got to play in Wimbledon finals and be the guy on the Davis Cup Team," Roddick said.

Roddick, the 20th seed, takes on Bernard Tomic in the second round on Friday.

"I wanted an opportunity to say goodbye. I hope I'm sticking around," Roddick added.

"I would like to congratulate Andy on an outstanding career and thank him for 13 years of fantastic memories," ATP president Brad Drewett said. "A former ATP World Tour No. 1, Andy is one of the greatest competitors this game has ever seen, and his presence at the top of the men's game for more than a decade is a testament to his talent and determination."