Jordan Spieth rued his execution as he fell out of title contention at the U.S. Open on Saturday.
The defending champion only managed to card a par score of 70 despite being well-placed after his opening nine holes.
Starting on the back nine, Spieth hit three birdies in a row on holes 11 through to 13, before a bogey on the 14th took a little bit of gloss off his spectacular start.
But that was as good as it got as Spieth hit some trouble on the front nine, double-bogeying the second, which he followed up with a bogey at the third.
A birdie on the fourth brought him back to par which he held through the end of his round, seeing him to four over and nine strokes behind leader Shane Lowry, who still has four holes to play in his third round.
Despite that, Spieth was happy with the majority of his round.
"It went pretty well. Got off to a dream start for moving day, and then just kind of boned a wedge, kind of put a bad swing on a pretty stock shot that killed momentum. I went double bogey, bogey," Spieth said.
"I played three holes at four over today with a wedge in my hand from the middle of the fairway, and it's just kind of a bummer.
"You're not going to be able to do anything at a U.S. Open if you get the wedge opportunities and you play them over par. So felt like still really happy with the way we played after that, and come out tomorrow and try and pull a Johnny Miller [who won the 1973 U.S. Open despite a six-stroke deficit heading into the final round]."
When asked if he would change his approach given he has to make up nine strokes on Lowry, Spieth said he would not be making any drastic shifts.
"No, I'll probably play it the same way. Those wedge opportunities are - normally, out of those three, at least one under versus playing four over," he said.
"That's five shots right there. I'd have shot 65. So I don't even know if that's what we need tomorrow. So I don't need to play any different, just hit my wedges a little closer. Just bad timing on a poorly executed shot."