The worst run of Montgomerie's career was extended on Friday night when he missed the cut at the Masters as a result of Campbell's closing birdie putt.

Augusta has the rule under which anybody within 10 strokes of the lead at halfway qualifies for the final two rounds, but with Campbell six under par Montgomerie's five over was not good enough.

The Scot, who spun his pitch into Rae's Creek for a double bogey seven on the 13th and three-putted the 17th for bogey, has now missed five successive cuts and during the sequence he also made a second round exit from the Accenture World Match Play in California.

"You need a bit of fortune here and I had no fortune at all, but never mind. I didn't putt very well - I never do here," commented Montgomerie.

"I had three birdies, two of them tap-ins and a 10-footer. That's not enough. You have to make more birdies than that. There you go."

Also out of the Masters are Lee Westwood, Paul McGinley, Nick Faldo, Sandy Lyle and Ryder Cup captain Ian Woosnam, whose bogey at the 17th prevented him making it through for the first time since 2000.

Ireland's Brian McElhinney failed to survive as well, but the British amateur champion will still be able to say that he was the leading amateur at the 2006 Masters.

Rounds of 80 and 75 were enough to give McElhinney that consolation prize by two from Edoardo Molinari, who last year became the first Italian to capture the American amateur crown.