Brooklyn Decker is making the jump from modeling to acting. We’ve learned the Sports Illustrated cover girl — and wife of tennis champ Andy Roddick — just signed on to star in “Just Go With It,” a romantic comedy starring Adam Sandler and Jennifer Aniston. “I’m so happy and excited to be working with such an amazing cast and crew on my first film. I just hope no one minds if I try to get Sandler in a mankini for my next shoot,” Decker tells Page Six.