Hideki Matsuyama's early-season struggles continued at the World Golf Championships-HSBC Champions on Friday in Shanghai as the defending champion carded another 2-over-par 74 in the second round.The Japanese world No. 4 made three birdies, three bogeys and a double-bogey at Sheshan International Golf Club and is languishing in a tie for 66th place at 4-over.World No. 1 Dustin Johnson, who played in the same group as Matsuyama, fired a 63 to move one shot ahead of overnight leader and reigning U.S. Open champion Brooks Koepka at 13-under.Matsuyama dropped two shots on the front nine with bo…READ FULL ARTICLE