A round of even par playing in the final group of an exceedingly difficult championship might not constitute a collapse. But consider the context for Dustin Johnson. He had a two-shot lead on the front nine on Sunday, lost it when he made three bogeys in a stretch of four holes, but still had a chance to win outright when he faced an eagle putt from 12 feet. Instead, Johnson not only missed that one, but the ensuing three-footer that would have forced a playoff with Jordan Spieth. In losing the U.S. Open, Johnson missed out on his best chance of capturing that elusive first major title, raising the question if he'll ever recover.