Attrition blow for Morris

War Of Attrition will miss the totesport Cheltenham Gold Cup after suffering a setback.

Last year's winner was found to have heat in his leg following exercise today and is out for the season.

"Unfortunately after exercise this morning he was found to have heat in his leg and will be out for the season," said trainer Mouse Morris.

"Everything has hit me, as I lost my mother last night as well."