The odds are against Belinda Bencic winning the Wimbledon women's singles, and not just because she is 35th in the rankings and faces the impressive seventh-seed Mirra Andreeva in the quarter-finals.
She is also a mother, and only three mums have won a grand slam in the Open era. Even Serena Williams cold not do it, though she did reach four finals.
Of the trio two are Australians: Margaret Court, who won the Australian, French and US Opens in 1973, and Evonne Goolagong Cawley whose 1980 Wimbledon crown came after she had given birth to daughter Kelly.