During his 20-plus year tour career, Agassi was known by the nickname "The Punisher".
After suffering from sciatica caused by two bulging discs in his back, a spondylolisthesis (vertebral displacement) and a bone spur that interfered with the nerve, Agassi retired from professional tennis on September 3, 2006, after losing in the third round of the US Open to Benjamin Becker.
After thirty minutes of watching Agassi play, Bollettieri called Mike and said: "Take your check back.
He started slowly in 1994, losing in the first week at the French Open and Wimbledon.
Nevertheless, he emerged during the hard-court season, winning the Canadian Open.
He reached the quarterfinals on that occasion, losing in five sets to David Wheaton.
Agassi's Grand Slam tournament breakthrough came at Wimbledon, not at the French Open or the US Open, where he had previously enjoyed success.