Alex Smalley leads the PGA Championship, potentially setting up his first career PGA Tour victory. The 29-year-old from Rochester, New York, has been in top form, with seven top-25 finishes this season.

Alex Smalley, chasing his first PGA Tour title, grabbed a one-stroke lead in Friday's second round of the PGA Championship as cold and windy Aronimink played havoc with contenders.

The crowded leaderboard at Aronimink includes several looking for their maiden major, and the SI Golf staff debates whether one of them will break through.