SHANE LOWRY was left kicking himself after a basic blunder at the US Open.

The World No.12 sensationally PICKED UP HIS BALL before marking it on the 14th green in his second round at Oakmont.

Lowry instantly realised his blunder and cursed his violation of the most basic of golf rules.

And, as per the rules, he was immediately penalised a point – although he could’ve been docked two.

Lamenting his gaffe, albeit with a smile on his face, he said: “It’s probably one of the stupidest things I’ve ever done.

“I just picked the ball up.

“I had the ball my hand turned around and [caddie] Darren [Reynolds] he basically said to me, ‘What are you doing?’

“I put it back down and marked it and played on and I knew it was gonna get penalised.

“I didn’t know if it was going to be one or two.

“But yeah, maybe I was just my mind was somewhere else, but I fought. I still tried.”

Golf fans were as blown away by the 38-year-old’s blunder, with one saying: “Oops.”

Another said: “Oakmont has got to Lowry.”

And another said: “Not a good thing to do.”

One remarked: “Shane’s not having a good time.”

Another sarcastically chimed in: “He needs to play in the PGA some more.”

Lowry ultimately ended up missing the cut for the second time in seven US Open appearances with scores of 79 and 78.

When asked where he felt he went wrong, he replied: “I don’t know to be honest.

“I drove it in play a lot yesterday, did what I was supposed to off the tee.

“And then just didn’t have my game that I’ve had for the last while.

“And then I really struggled on the greens yesterday and the round got away from me here and that was it.

“I let it sort of do [to me] what I said it wouldn’t do. But that’s Oakmont. That’s the US Open.”

American Sam Burns currently tops the leaderboard in three under, with JJ Spaun Jr. a shot behind him in second place.