Breaking a sweat was at the top of Robert Pattinson 's to-do list on Tuesday. With the countdown to Summer ticking away, Rob took a casual trip to his gym in LA, stepping out in a white t-shirt, black shorts, and red sneakers. On Wednesday, the casting rumor mill was aflutter with talk about the actor. According to some reports, Rob might star in Disney's Indiana Jones  reboot. Although E! News reported it's not going to happen , we can't help but picture Rob in the sexy uniform Harrison Ford  made famous. It's been just a couple weeks since we last saw the British stunner's good looks at Cannes Film Festival , where he promoted his upcoming film releases. Keep reading to see his latest pictures!