Lee Trevino, Ernie Els, Andre Agassi, and Monica Seles are all two-time U.S. Open Champions. Lee Trevino is a Mexican-American professional golfer who won the U.S. Open in 1971 and 1972. Ernie Els is a South African professional golfer who won the U.S. Open in 1994 and 1997. Andre Agassi is an American retired professional tennis player who won the U.S. Open in 1994 and 1999. Monica Seles is a former Yugoslavian professional tennis player who won the U.S. Open in 1991 and 1992.