Charles Luther Sifford was an American professional golfer. Early in his career, he won a number of All-Negro events, winning the United Golf Association's National Negro Open six times. Later in his career, he was permitted to play on the PGA Tour, winning two events, the 1967 Greater Hartford Open and the 1969 Los Angeles Open. His huge influence was later acknowledged by Tiger Woods: without Sifford, "I probably wouldn't be here. My dad would have never picked up the game. Who knows if the clause would still exist or not? But he broke it down."