Unbelievably big for his agility level, unbelievably quick for his size, LeBron James has long been considered a superhero on the court. But if he’s Superman, his kryptonite is more well-known than that of his fellow NBA standouts. James will surely go down as one of the best to ever grace the hardwood -- but he will also likely be remembered as the greatest ever to be continually felled by everyday, human episodes like leg cramps and dehydration. So that’s what we'd like to believe one Oklahoma City Thunder fan was referring to on Sunday, when she told James to "Just suck it up!" from her cushy courtside seat. But something tells us it wasn't. The incident quickly went viral, with James himself finding humor in it after the game.