Published Monday, 25 August 2014
McIlroy plays his shot from the 11th tee. (© Getty)
The Holywood golfer, who was chasing a fourth straight victory in all competitions, finished five under for the tournament in a tie for 22nd place, nine shots behind winner Hunter Mahan of the US.
McIlroy had been five shots off the pace going into Sunday but was unable to close the gap with a difficult round which included a double bogey on the 10th hole and three birdies.
The 25-year-old, fresh from wins at the Open Championship, WGC-Bridgestone Invitational and US PGA, had turned things around after a nightmare opening round of 74, but admitted he has struggled to "get it going on the greens" at Ridgewood Country Club in New Jersey this week.
He tweeted: "Not the week I wanted at The Barclays but some positives to take into Boston. Thanks NJ for all your support this week!"
Meanwhile fellow Northern Ireland golfer Graeme McDowell also struggled on the final day as he closed with a round of 72 to finish three under in a tie for 38th place.
© UTV News