Rory McIlroy remains in contention at the US Open despite carding a two-over 72 in his second round at Pinehurst No.2, where Bryson DeChambeau is on the charge. (More Golf News)
McIlroy, the 2011 champion, was among the early starters on Friday and bogeyed two of his first six holes after starting on the 10th tee.
However, he steadied the ship on the back nine to finish the day at three under for the tournament, two shots behind his fellow overnight leader Patrick Cantlay, who is among the later starters.
The leaderboard might have looked rosier for McIlroy had he not bogeyed his last hole of the day, the par-three ninth, having found the bunker.
DeChambeau continued to make good ground as his one-under 69 improved him to four under for the tournament. The American had a typically eventful round by mixing four bogeys with five birdies, the last of which saw him finish with a flourish on the 18th.
Ludvig Alberg is also at four under and was, like Cantlay, preparing to start his second round just as McIlroy and DeChambeau reached the conclusion of theirs.
Belgian Thomas Detry was making a splash in round two. He had reached five under through 13 holes, putting him level with Cantlay going into the closing stages of his round.
PGA Championship winner Xander Schauffele is at one under after posting a 69, but it was a tougher day for world number one Scottie Sheffler, who is five over par after carding a four-over 74 on day two.
Scheffler now faces an anxious wait to see if he will make the cut.