PGA champion Y.E. Yang, still struggling with jet lag after a flight full of delays from South Korea, shot 70 to finish last among the four major champions. "I brought out new irons this week with the new grooves just to try and see how they work, because I wanted a couple of rounds under my belt with this new model ... So Nike made a good set, and I think I like them." A new rule changing the dimensions of grooves in irons starts next year, although it is expected to affect wedges the most, and Glover kept his old wedges in the bag this week because he didn't want to give up too much of an advantage. Full Article at Sporting News