
Rory McIlroy admitted he is concerned about his form ahead of next week’s US Open after missing the cut at the RBC Canadian Open.
The Masters champion shot a dismal second-round 78 on Friday, carding a quadruple bogey, a double and four other bogeys in an eight-over-par round that left him languishing 21 shots behind halfway leader Cameron Champ, who finished on 12 under.