Tennis Star Courts Lakers Star

11/9/2009 9:34 PM PST
Maria Sharipova has three Grand Slam tennis titles under her belt ... and the guy she's holding hands with -- L.A. Laker Sasha Vujacic -- is wearing a brand new NBA championship ring.

If the 6'2" and 6'7" athletes -- who were spotted walking around L.A. today -- ever have a kid ... doctors will have to have a "No sports agents allowed" rule in the delivery room.