Fellow-countryman Graeme McDowell follows him out of the tournament, joined by the likes of Jason Dufner, Jason Day and Danny Willett - who withdrew due to the recurrence of a back injury. Vijay Singh was the last player to do so during the second round of the 2003 U.S. Open at Olympia Fields.
Sprinkled through the leaderboard are a few familiar names capable of lighting up the links-style layout with American Rickie Fowler, Englishman Paul Casey and Japan's Hideki Matsuyama all tipped as future major winners.
"I birdied the first two holes, but those were tap-ins".
I did the work, looked at the golf course, made sure that I could actually play and visualize the golf course. With one more birdie on the back nine, Matsuyama carded a sparkling 7-under 65, matching Fowler for the low round of the week.
"I was in the hay too much over the last couple of days", Day said. "Yeah, it was a bit of a roller coaster. I guess it's rare you get through a U.S. Open or any major without some kind of a hiccup".
"It's just golf. It's frustrating".
Thomas made an eagle, nine birdies and two bogeys.More news: UK police make new arrest in London Bridge attack inquiry
In the final round at Oakmont past year, his golf ball moved slightly as he positioned himself for a short putt on the fifth hole.
Thomas' 63 was only the fifth in the history of the U.S. Open, joining Johnny Miller (1973), Tom Weiskopf (1980), Jack Nicklaus (1980) and Vijay Singh (2003).
Koepka had the lead until he turned a birdie chance into a bogey on the par-5 first hole after making the turn.
South African Louis Oosthuizen, the 2010 British Open champion, roared into contention going six-under through 16 holes to sit one shot back alongside American Patrick Reed who was also putting together an impressive scorecard going five-under with four to play.
Casey did his part to set the pace, even after his triple bogey. Fleetwood was poised to take the lead until his pitch to the 18th wasn't strong enough and his next shot went beyond the flag and down the slope some 70 feet away. 12 and 13 to fall two shots behind Brooks Koepka. "Even just trying to take my medicine was very, very hard".
Dustin Johnson was right on the cut line with eight holes to play.
Only eight shots separate the leaders from the players who made the cut on the number. It was 1 over at Medinah in 1990. When the afternoon wave began, it was at 1 over with a possibility of going to 2 over, depending on the wind. The last time Day missed a cut in a major was the 2012 PGA Championship, just a month after his son was born.