— Serena Williams and Martina Hingis dining downtown at MXDC, the new Todd English Mexican restaurant, Tuesday night. The Grand Slam champs looked fresh from the court in sports gear. Both were in town for the latest Kastles match — Hingis played and Williams watched. Joined for dinner by fellow Kastle and doubles star Leander Paes. Shared a paella, a whole roasted fish and lots of tacos.