The British tennis star will play his final Grand Slam at the U.S. Open and then retire in September after the Davis Cup playoff at the All England Club.

The 32-year-old Henman, who reached four Wimbledon semifinals and never won a Grand Slam title in his 14-year career, cited a sore back and bad knee today for his decision call it quits.

"The way that its affected my performance has obviously made my life a little bit harder and probably a little bit less enjoyable," Henman said at the USTA Billie Jean King National Tennis Center.

Henman is unseeded going into the U.S. Open, which begins Monday. He is scheduled to play for Britain against Croatia for a spot in the Davis Cup World Group.

"To play at Wimbledon at Davis Cup will be very special for me," he said. "It's always been an honor and a pleasure to play any event at the All England."

Injuries have caught up with the 92nd-ranked Henman, who won 11 singles titles in his career and was ranked as high as No. 4 in 2002. He was sidelined three months at the start of the season with a knee injury and is 5-11 in singles matches.

In June, he lost in the second round at the All England Club for the third straight year.

He carried the hopes of British fans through 14 Wimbledon appearances, with many gathering on "Henman Hill" to cheer him. Fans were looking for the first homegrown Wimbledon men's champion since Fred Perry in 1936. Virginia Wade won Wimbledon in 1977.

Would he like another crack at Wimbledon next summer?

"The simple answer is no because I've played there so much over the years and had some fantastic memories," he said. "Some of the best memories of my career."

In June, Henman once again enthralled the Centre Court crowd, outlasting Carlos Moya in a riveting fifth set win on his seventh match point. A double-fault by Moya on the third match point of the 24th game of the set gave Henman a 6-3, 1-6, 5-7, 6-2, 13-11 win.

"That was something special. The quality of play by both of us and me winning helped," he said with a smile. "That's one I'll remember fondly."

He bowed out to Feliciano Lopez in his next match after winning the first two sets.

Henman reached the Wimbledon semifinals in 1996-97 and 2003-04 and the semifinals at the French Open and U.S. Open.

Earlier this month, his back acted up again during the first round of the Cincinnati Masters, losing to Juan Ignacio Chela. In a first-round match in Washington, Henman double-faulted on match point in a third-set tiebreaker to hand American John Isner a win in just his second ATP tour event.

Henman pulled out of the Pilot Pen tournament, a warmup for the U.S. Open.