Bjorn Borg, for one, was a Swedish professional tennis player who won 11 Grand Slam singles titles during the 1970s and 1980s. He is widely considered to be one of the greatest players in the history of the sport and his nickname was 'The Ice Man' due to his calm demeanor on court. He was the first male player to win four consecutive Wimbledon singles titles and is remembered for his long-standing rivalry with American player John McEnroe.