douard Roger-Vasselin won a Grand Slam doubles championship before Heather Watson.
douard Roger-Vasselin (] ; born 28 November 1983) is a male tennis player from France. 
 He won the men's doubles title at Roland Garros in 2014, partnering Julien Benneteau. 
Heather Miriam Watson (born 19 May 1992) is a British tennis player and a Wimbledon Mixed Doubles Champion. 
