SAN FRANCISCO (AP) — A look at the key hole Friday in the second round of the PGA Championship::
STROKE AVERAGE: 3.25.
KEY FACT: The toughest par 3 at Harding Park, Li made a 7-foot putt to help keep him bogey-free for the day. Rory McIlroy was on the projected cut line when he ran off four straight birdies that included a 25-footer on No. 8.