Andre Kirk Agassi (born April 29, 1970) Is A Former World No. 1 Professional American Tennis Player. He Won Eight Grand Slam Singles Tournaments And An Olympic Gold Medal In Singles, And Is Generally Considered By Critics And Fellow Players To Be Among The Greatest Tennis Players Of All Time.Known For His Unorthodox Apparel And Attitude, Agassi Is Often Cited As One Of The Most Charismatic Players In The History Of The Game, And Deemed Largely Responsible For The Increase In The Popularity Of Tennis During The 1990s.He Is Married To Fellow Retired Professional Tennis Player And Grand Slam Champion Steffi Graf.