Masters champion Hideki Matsuyama carded a 4-under 68 in the second round of the PGA Championship on Friday to finish the day two strokes behind joint leaders Louis Oosthuizen and Phil Mickelson.Starting six strokes off the lead after an opening-round 73, Matsuyama shot six birdies against two bogeys to sit at 3-under through two days at Kiawah Island Resort's Ocean Course."I was steady off the tee and with my second shots, so I created a lot of chances. I think I was able to play good golf," Matsuyama said.Related coverage:READ FULL ARTICLE