Cameron Champ, making the most of his last-gasp entry as an alternate, seized the lead at the Canadian Open on Friday as Rory McIlroy crashed out of his last US Open tuneup.

Champ fired four birdies in a four-under-par 66 to seize a two-stroke lead at TPC Toronto Osprey Valley, where world number two McIlroy posted an eight-over 78 to miss the cut by a wide margin.

McIlroy, who won the Masters in April to complete a career Grand Slam, endured a horrendous day in a final start before next week's US Open at Oakmont.

McIlroy's nightmare round included a quadruple bogey eight at the fifth hole, where he fired his second shot out of bounds and after a one-stroke penalty hit another shot over the green.

He made a double-bogey at the 11th, where he was in the water hazard off the tee, and mis

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