In his defense, there has to be something medically wrong with him.
More psychologically, I think. This thing is living rent-free in his head by now, and it’s probably affecting his mechanics. Sort of like a field goal kicker. They hit one or two bad ones, the fans and media are all over him, and he’ll start getting twitchy and shank kicks every which way but straight. All it takes is one or two good kicks (or hits) for them to shake the fuzz out of their head and get back on track.