Dustin Johnson closed with a final round 71 to claim the title . Bubba Watson struggled briefly but paid for a bad stretch of three bogeys . butler McIlroy finished with a 71 but still finished in the top ten . butler 's Danny Willett scored 71 to finish tied 12th .
Dustin Johnson closed with a final round 69 to claim the title . Bubba Watson led briefly but paid for a bad stretch of three bogeys . Rory McIlroy signed with a 71 but still finished in the top 10 . England 's Danny Willett shot 68 to finish tied 12th .