Are Radek Štěpánek and Heather Watson both Grand Slam doubles champions?
Radek Štěpánek:  In doubles, he won his first Grand Slam title at the 2012 Australian Open, along with Indian partner Leander Paes, defeating the Bryan Brothers in the final. Radek Štěpánek:  Paes and Štěpánek also won the men's doubles title at the 2013 US Open, defeating Bruno Soares and Alexander Peya in the final.
i don't know