Mickelson Frustrated by Form

Open champion Phil Mickelson had to fight his own swing throughout his round to finish the day with a one-under 71 to sit tied 21st.

He registered two double bogeys, one at the ninth when he hit his tee shot into the water, and said only his putting saved him in what proved to be a testing day for the left-handed American.

"I can't remember swinging this bad in a long time, and as I shoot video of my swing I'm doing everything wrong," Mickelson said.

"The path of the club is too inside, then it's vertical, the head's moving, my legs are loose. Divots are steep. It's terrible. This is the worst I've hit and I can't find the middle of the club face.

"And I'm not sure if the ball is going to go dead left or snap hook right and it's a frustrating time tee to green. But I'm putting okay."