Phil Mickelson took time at PGA Championship to go sliding down a hill on cardboard

Phil Mickelson is struggling at the PGA Championship at 1-over about midway through the second round. But that clearly hasn’t dampened his mood.

The 45-year-old Mickelson took time out at Whistling Straits to go sliding like a kid down a hill on a piece of cardboard.

Mickelson is an American hero.

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