Phil Mickelson finally admits truth behind US Open explosion

It’s been four days since Phil Mickelson’s stunning meltdown on the 13th hole of his US Open third round at Shinnecock Hills and on Wednesday, after some soul searching, Mickelson told The Post he’s “sorry� for what happened. “I know this should have come sooner, but it’s taken me a few days to calm down,� Mickelson said. “My anger and frustration got the best of me last weekend. I’m embarrassed and disappointed in my actions. It was clearly not my finest moment and I’m sorry.� The incident took place Saturday afternoon, when Mickelson was frustrated by the unplayable nature of the pin position on the 13th green and his 18-foot bogey putt rolled past the cup and began to roll off the green. He