Rory McIlroy’s US Open plans are in absolute tatters. Watching his torment in Toronto on Friday night, it was hard to equate the player who missed the cut by 10 shots with the golfer who so magnificently won the Masters just eight weeks ago to become the sixth player in history to complete the grand slam.

Rory McIlroy endured a frustrating start to the RBC Canadian Open, carding a one-over 71 that left him six shots adrift of early leader Taylor Pendrith at TPC Toronto. The world number two and reigning Masters champion struggled in his first competitive round since a disappointing showing at the PGA Championship over two weeks ago.