Pro golfer Brooks Koepka seems to be hyper-focused on winning another major this weekend -- even at the expense of a good-luck kiss from his girlfriend, who he left hanging.
Brooks was getting ready for his final round at the PGA Championship Sunday, when he was caught on camera walking side-by-side with his gal, Jena Sims ... who awkwardly tried going in for a smooch on the lips, only to quickly jerk away when she saw he wasn't into it.