Four time singles champion who peaked in the world rankings at number 21 and had his best finishes in Grand Slam tournaments at Wimbledon and the US Open where he was eliminated in the fourth rounds.
He represented the United States early in his career at the 2004 Summer Olympics making it to the semi-finals but failing to earn a bronze medal.
He was noted for his strong serve and volleys and recorded a serve of 148 mph during a 2010 Wimbledon match, a record for the time.
He was born in Newport Beach, California.
He secured a victory against another powerful server in Andy Roddick in 2003.