Phil Mickelson is having a nightmare birthday and round of golf at the US Open.
The 48-year-old hit a moving ball with his putter on the 13th green at the Shinnecock Hills course on Saturday.
Fans gasped in disbelief at his bizarre antics.
Mickelson's bogey putt from above the hole ran by the cup and was headed down a slope when he ran over and swatted it back toward the hole as the ball was still moving!
Officials gave him a two shot penalty and he was awarded a sextuple-bogey 10 on the hole and was 10 over for his round.
His score on the 13th was the highest score on any hole at this U.S. Open, according to the USGA.
Mickelson was having a miserable time before reaching 13.
He had four consecutive bogeys before paring the 12th, despite the serenading of "Happy Birthday" from the crowds at every hole.
Mickelson managed to par 14 through 16 after his meltdown before bogeying 17.
After the incident the media swarmed the shamed golfer.
He said he knew to do it before his ball stopped, in the rules of he ball is still moving it is only a two stoke penalty.
Mickelson finished his round with an 81 score - 'he apologized' if it upset anyone.
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