Phil Mickelson bizarrely putts moving ball at US Open
The 48-year-old's ball seemed to be rolling off the green until he ran over to it and knocked it back up the hill
Why on earth has he done that?
Phil Mickelson's 48th birthday took a strange twist on Saturday as he was penalised for deliberately hitting a moving ball in the third round of the US Open.
Mickelson, who was already four over par for the day, badly overhit a putt on the 13th green which looked in danger of rolling off the putting surface.
But the five-time major winner prevented that from happening by running after the ball and hitting it while it was moving, a breach of rule 14-5 which incurs a two-shot penalty.
Commentating on the incident for Fox, former Ryder Cup captain Paul Azinger said: "That's the most out of character I have ever seen Phil.
"I think he just snapped. I'm sure he is going to regret that."
Mickelson's score on the 13th was initially recorded as a nine but was later changed to a 10, leaving the left-hander 10 over par for the day and in a tie for 63rd.