Andre Kirk Agassi is an American former world No. 1 tennis player. He is an eight-time major champion, an Olympic gold medalist, and a runner-up in seven other majors. Widely considered one of the greatest tennis players of all time, Agassi is the second of five men to achieve the career Grand Slam in the Open Era and the fifth of eight overall to make the achievement. He is also the first of two men to achieve the career Golden Slam, as well as the only man to win a career Super Slam.

The Grand Slam in tennis is the achievement of winning all four major championships in one discipline in a calendar year. In doubles, a Grand Slam may be achieved as a team or as an individual with different partners. Winning all four major championships consecutively but not within the same calendar year is referred to as a "non-calendar-year Grand Slam", while winning the four majors at any point during the course of a career is known as a "Career Grand Slam".