Andre Agassi was the first man to win all four Grand Slam tournaments (Australian Open, French Open, Wimbledon, US Open) on three different surfaces - hard, clay, and grass. He completed the career Grand Slam by winning the French Open in 1999. Laver won all four in the same year (1969) but on just two surfaces (grass and clay), Emerson and Perry never achieved the career Grand Slam on all surfaces.