Thick rough is tricky to play from — even for the best golfers in the world. When the grass is thick just off fairways and greens, things can go awry quickly, as we’ll see at the U.S. Open next week.

First, we saw Tiger, then Tim Clark (see photos below), then Tom Watson, then Phil Mickelson. They were each slashing the ball out of the deep rough on Thursday's first round at Royal Lytham & St.

Torrey Pines has shown its teeth through two rounds of The Genesis Invitational. The combination of wet conditions the past three days and some gnarly, deep rough on the burly South Course has wreaked ...