Despite turning 27 in September, Na has been a pro for more than nine years and has played in 186 PGA Tour events. A cut-making machine, Na played the weekend in 23 of 26 events in 2010. When it comes to the big moment, however, he just Na-ver (Sorry, couldn't help it) seems to get it done. Still, his top performances last year came against impressive fields (A T-2 at Bay Hill and a T-3 at the BMW Championship), and he has managed to rack up nearly $5 million in prize money the past two seasons. Na's accomplished resume -- including playing in the Tour Championship the past two years -- probably makes him the most borderline pick for this list, but his lack of a win has kept him under the radar enough to maintain "sleeper" status in our eyes. That should change soon.