Matsuyama played alongside first-round leader Rickie Fowler and Jon Rahm, ranked No. 10 in the world. That dropped him back to 6-under.
"I was upset with the score I had made, but it did not have any effect on my attitude or how I was going to then approach the rest of the round or the next shot". And they plenty of company.
Eight of the top 12 in the world will not be around for the weekend at this most unusual U.S. Open, where the top 60 and ties advanced to the final two rounds. The cut for the top 60 and ties was at 1-over 145, tying a U.S. Open record set in 1990 at Medinah.
Johnson also missed the cut at the Memorial, so this was the first time since 2013 (Pebble Beach, Riviera) that he has missed the cut in consecutive events. He heads into Saturday's third round one shot off the lead.
The 26-year-old Englishman has been on the European Tour since 2011. "So it's pretty simple, I just didn't get it in the hole fast enough". His lone victory in America was the Houston Open in 2009, though not to be overlooked are his 14 victories around the world that include two victories in Abu Dhabi, one at the BMW PGA Championship, two at the Johnnie Walker Championship at Gleneagles and the World Match Play Championship that included Tiger Woods. "To shoot a good round like today, I'm certainly looking forward to the weekend".
He kept it in the short grass, the secret to Erin Hills that wouldn't appear to be that hard with some of the widest fairways for this major. If only he had hit the fairways. One example of that was Fowler hitting 3-wood into the green on the 632-yard 18th hole, with a breeze at his back. And even that was frustrating. He made four birdies over the last six holes to salvage a 71, but he still missed the cut for the second straight year.
Koepka had the lead until he turned a birdie chance into a bogey on the par-5 first hole after making the turn.
"I had been swinging it well and it felt really, really good a couple holes later to be picking the ball out of the hole for a birdie".
Jason Day had two triple bogeys and posted a 79, his worst score ever in the U.S. Open.
McIlroy dismissed the notion of being rusty before the tournament, but conceded on his way out of Wisconsin that he hasn't played almost enough.
The U.S. Open was only his sixth start this year. Much like Johnson, it takes a lot to get him excited - even a share of the 36-hole lead at the U.S. Open.
His schedule will pick up immediately. And I've been very light on competitive rounds this year.
"You can shoot low numbers here", Day said.
As for Johnson? His second son was born Monday and Johnson was headed to California to spend time with his family, change some diapers and presumably work on his putting.