Dunne named an unchanged side for Tuesday's home clash against Swindon from the one which disposed of Portsmouth last weekend but watched his side fall 1-0 to the promotion hopefuls.
Despite the defeat Dunne felt the U's deserved reward for their performance and he must now decide whether to keep faith for a third successive match or turn to the likes of Marcus Bean and Drey Wright among others.
Midfielder Kem Izzet continues to struggle with an ankle injury as Colchester aim to get back to winning ways.
They will do so against a North End side who are winless in their last five matches and have won just one of their previous nine.
- Sports & Recreation