One Love: U.S. Open Couples!

From Chelsea Clinton & Mark Mezvinsky's PDA to Gwen Stefani & Gavin Rossdale's cheer section, see which star pairs are Grand Slam fans!

TEA & DAVID

Is this tennis or baseball? Tea Leoni catches a foul ball – and impresses husband David Duchovny with her skills – during Caroline Wozniacki's winning Sept. 8 match against Dominika Cibulkova.