Last Updated: Sunday, 3 September 2006, 19:32 GMT 20:32 UK
Andre Agassi's career in pictures
Agassi's willingness to test the limits of a traditionally conservative sport immediately got the sponsors interested, but his appeal didn't diminish as he grew older (and his hair got thinner).
At 34, he reportedly earned £15m in sponsorship and it is estimated that over 20 years he has earned more than £100m alone from endorsement deals, comparable with Tiger Woods, Michael Jordan and David Beckham.
Agassi established a charitable foundation in 1994 through which he has raised more than £30m. Five years ago, he opened the Andre Agassi College Preparatory Academy, a school for at-risk children in Las Vegas.