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Kevin Na was cruising along at 10 under par Saturday when he — and caddie Kenny Harms — came briefly unglued at the par-5 11th.
Playing what seemed like a fairly straightforward layup from a fairway bunker, Na's second shot hit the lip and bounded out into the fairway, leaving him 287 yards to the pin.
Trying after his third shot save his par from the front bunker, Na bladed his fourth over the green and immediately reacted in disgust. CBS announcers suggested a cell phone had gone off during his swing. Playing his fifth from over the back, he left his chip short of the putting surface and needed two more shots for his double bogey-7.