Jimmy Walker is the early clubhouse leader of the PGA Championship, following a first-round five-under par 65 at Baltusrol Golf Club in Springfield Township, N.J.
Walker, 37, is looking for his first win of 2016, and first ever major championship victory.
Jason Day played well to begin his defense of the PGA Championship, shooting a two-under 68. The world No. 1 is tied for fourth with Rickie Fowler and Brooks Koepka, and just two strokes behind Walker. Fowler is looking for just his second cut at a major this year.
Phil Mickelson, following his second-place finish at the British Open, shot a one-over 71. The winner of the 2005 PGA Championship at Royal Troon, he is currently six strokes off the lead.
Rory McIlroy struggled on Thursday, shooting a four-over 74. The two-time PGA Championship winner is tied with John Daly, and will fight to make the cut on Friday.
Jordan Spieth, who finished second at last year's tournament, will tee off at 1:25 p.m. EST with Bubba Watson and Sergio Garcia. This year's three major winners, Dustin Johnson, Henrik Stenson and Danny Willett, will tee off at 1:45 p.m. EST.
[Click here for the entire leader board from Baltusrol.] (http://www.golfdigest.com/story/pga-championship-leader-board)