Andre Agassi Signed Tennis Ball comes professionally framed with a certificate of authenticity on the back. Andre Kirk Agassi is an American former world No. 1 tennis player. He is an eight-time major champion and an Olympic Gold Medalist, as well as a runner-up in seven other majors. Agassi is 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 (career Grand Slam and Olympic gold medal), as well as the only man to win a career Super Slam (career Grand Slam, plus the Olympic gold medal and the year-end championships).