Mickelson was looking for a tee shot on the part-5 18th hole when he slipped on the rocks and had an embarrassing moment. Lefty took a triple bogey on the hole, including two penalty shots, which moved him further away from contention.
Mickelson had a tougher time on Saturday compared to his previous two rounds. He shot a 1-over 73 after going three under Thursday and one under Friday, making him one under for the tournament.
Pebble Beach is one of the most scenic golf courses in the world, but there are a few hazards to playing so close to the coast. Mickelson knows that all too well.