Jean René Lacoste was a French tennis player and businessman. He was nicknamed "the Crocodile" because of how he dealt with his opponents; he is also known worldwide as the creator of the Lacoste tennis shirt, which he introduced in 1929, and eventually founded the brand and its logo in 1933.
Lacoste was one of the Four Musketeers with Jean Borotra, Jacques Brugnon, and Henri Cochet, French players who dominated tennis in the late 1920s and early 1930s. He won seven Grand Slam singles titles at the French, American, and British championships and was an eminent baseline player and tactician of the pre-war period. As a member of the French team, Lacoste won the Davis Cup in 1927 and 1928. Lacoste was ranked the World No. 1 player in some rankings for 1926, 1927 and 1929. He also won a bronze medal at the 1924 Summer Olympics.