The Irish Open will be short one moody Scot after Colin Montgomerie was forced to withdraw from the event at Killarney with an Achilles strain.

The eight-times European No 1 is now fighting to be fit for the Johnnie Walker Championship at Gleneagles at the end of August.

It is just the next in a string of disappointments for Montgomerie who also missed the Open Championship two weeks ago for the first time in 22 years, but that was because he failed to qualify rather than through injury.

There is sure to be a huge gallery for Wednesday's Irish Open pro-am, with Open champion Darren Clarke, US Open champion Rory McIlroy, 2010 US Open champion Graeme McDowell and three-times major champion Padraig Harrington on show.

Adult spectators at the pro-am will be asked to donate five euros towards the tournament's chief fund-raising activity, child-support organisation Barnardos.