Nicolás Alejandro Massú Fried (Spanish pronunciation: [nikoˈlaz maˈsu];[a]), nicknamed El Vampiro (Spanish: "the vampire"), is a Chilean former tennis player, a former World No. 9 in singles, and a winner of two Olympic gold medals. He is the only male player to have won both the singles and doubles gold medals during the same games in modern Olympic tennis (since 1988), the only two gold medals Chile has won at the Olympics. Massú also reached the final of the 2003 Madrid Masters and won six singles titles.
