Hideki Matsuyama's FedEx Cup Playoffs struggle continued at the Dell Technologies Championship on Friday, with the world No. 3 finishing the first round at 1 over, six shots back of rival and leader Dustin Johnson.

Searching for form after missing the cut at the playoffs opener last week, Matsuyama got his four days at the TPC Boston off to a difficult start, his round seeing a bit of everything, from eagle to double bogey.

Johnson, who with his win at last week's Northern Trust bumped Matsuyama into second on the season's money list, finished with a day's best 66, his back nine consisting of three birdies, a bogey and an eagle on the par-5 18th.