Are Radek Štěpánek and Heather Watson both Grand Slam doubles champions?
Heather Watson Heather Miriam Watson (born 19 May 1992) is a British tennis player and a Wimbledon Mixed Doubles Champion. She is a former British No.1 and current British No. 2 behind Johanna Konta.
2015 J&amp;T Banka Prague Open – Doubles Lucie Hradecká and Michaëlla Krajicek were the defending champions, but Hradecká chose not to participate this year. Krajicek played alongside Karolína Plíšková, but lost in the quarterfinals to Belinda Bencic and Kateřina Siniaková.