SAN DIEGO — After shooting an opening-round 79, defending U.S. Open champion Angel Cabrera is a long shot to retain his title. But if the man they call The Duck is look for inspiration, he doesn’t have to look any farther than the shaft of his driver. Cabrera has an Argentinean flag on his 45 1/4-inch Aldila ProtoPype ADX shaft. The shaft weighs 80 grams and is X-stiff. Click on the photo for a better look.