
Hideki Matsuyama is aiming to become the first Japanese man to win one of golf's four majors. Chris O'Meara / AP Photo
Hideki Matsuyama is aiming to become the first Japanese man to win one of golf's four majors. Chris O'Meara / AP Photo
PGA Championship: Matsuyama co-leads as Day surges in to contention
Rain-interrupted second round saw McIlroy struggle to keep pace with the leaders while Spieth's grand slam bid looks unlikely.