Claim: Evonne Goolagong Cawley is a tennis player.

Evonne Goolagong Cawley AO , MBE -LRB- born 31 July 1951 -RRB- is an Australian former World No. 1 tennis player . She was one of the world 's leading players in the 1970s and early 1980s , during which she won 14 Grand Slam titles : seven in singles -LRB- four at the Australian Open , two at Wimbledon and one at the French Open -RRB- , six in women 's doubles , and one in mixed doubles .