The World No. 1 is back to winning at a high clip and is the overwhelming favorite entering the season's second major. If he plays well, he'll be tough to beat, but he'll have to overcome a five-year major-less drought to win. Another thing in the field's favor? Last year's U.S. Open was the first time he's ever failed to win a major after leading or having a share of the lead heading into the weekend. In other words, follow Webb Simpson's lead and don't give up!