Damien Duff has criticised the standard of refereeing in the League of Ireland following Shelbourne's 1-0 loss to Derry City on Friday night.
Paddy Barrett was sent off four minutes into the second half after picking up a second yellow card. The defender was adjudged to have struck Jamie McGonigle with an elbow as they battled for a ball in the air, but Duff said the decision was "not acceptable".
He told RTE: "I didn't think it was a foul. I thought McGonigle tried to back into him. Paddy's come round the front because he's a big strong boy and he's got punished for that.
