'''Martina Navratilova''' (born October 18 1956, in Prague, Czechoslovakia) is a former World No. 1 woman tennis player. She is generally considered to be one of the greatest female tennis players of all time.

Originally from Czechoslovakia, she defected to the United States in 1975 and became a U.S. citizen in 1981. During her career she won 18 Grand Slam si...(continue reading)