Tiger Woods' caddy Steve Williams is going public about his opinion of Phil Mickelson and it's not pretty.

According to the Guardian, Williams thinks Mickelson is a "prick". Not exactly breaking news, but he did reveal a fun anecdote about Michelson's saggy pectoral region. The following exchange happened while Woods and Mickelson were paired up together at this year's US Open.

The two players were walking down the 17th fairway when, according to Williams, someone shouted "Phil" in Mickelson's direction. The world No2 did not respond until the fan shouted "Hey, Mr Mickelson". When Mickelson turned and waved, the fan yelled out "Nice tits". The crowd erupted in laughter; Mickelson went double bogey, bogey and his chances of winning the tournament disappeared.

And then Happy Gilmore came from behind and sunk an impossible putt to win the tournament.