Ilie Nastase is a Romanian former professional tennis player who was one of the world's leading players in the 1970s. He won two Grand Slam singles titles and was ranked world No. 1 for a period of time. He also won four Grand Slam doubles titles and was a member of Romania's Davis Cup winning team in 1972. Nastase was known for his on-court antics and volatile temper, which earned him the nickname 'NASTY'.