The second round of the 2015 U.S. Open at Chambers Bay Golf Course featured surprises at both ends of the leaderboard, along with a few thrilling battles around the cut line.
There wasn't any shortage of incident throughout Friday. Jason Day collapsed on the final hole from dizziness and Tiger Woods bowed out of the tournament after two extremely poor rounds. Day was able to finish his round, but his health is still in question. No one is certain whether or not he will be able to play Round 3.
Phil Mickelson and world No. 1 Rory McIlroy spent much of the day flirting with cut line, but they ultimately qualified for the weekend. Meanwhile, Patrick Reed and Dustin Johnson dueled for the lead throughout a tough afternoon on the shores of Puget Sound.
Reed came out on top and won the honor of playing alongside Jordan Spieth in Saturday's final pairing (they are both five strokes under par).