Jordan Spieth revealed how furious he would have been if put in the same position as Dustin Johnson at the U.S. Open.

Everyone watching at Oakmont had an opinion regarding the way the USGA [United States Golf Association] handled the situation with the penalty stroke ultimately called on champion Johnson.

Instead of telling Johnson his fate right away, they told him on the 12th tee box that he might get a penalty, casting a shadow of doubt on the entire competition.

Spieth, the world's second-ranked player, said he would not have hit another shot had that happened to him.

"I would have thrown a fit. I promise you, I would have thrown a fit," Spieth said on Tuesday at Firestone Country Club, via Golf Digest.

"I wouldn't have hit another shot. I would have sat there like, 'This is not the way this goes. Let's figure this out right now'.

"You can't have a potential penalty or not. You've got to know in that case."

Though Johnson just went about his business and ultimately won, despite receiving the penalty stroke after his round, Spieth said the USGA made a mistake.

"I think that it was unfortunate the way it then played out, and they agree, and they said that," Spieth said.

"And I think that what Dustin did was extremely special given that circumstance."