L.A. DODGER'S NICE GRAB... RIHANNA'S BUTT

 
As we told you yesterday,  Rihanna has a new man ... LA Dodger Matt Kemp.

They vacationed in Mexico together this weekend.
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Meantime, a source tells HollywoodLife.com, “Rihanna and Matt are starting to get serious – he even followed her to Dubai for New Year's. Rihanna likes him because he’s such a gentleman … and super sexy!”