Coventry City remain third in the League Two table after four matches were played in the division today.
Kyle Reid, who is still on loan at Colchester United from the Sky Blues, was sent off in the 44th minute of Colchester United's 4-1 home defeat to Cheltenham Town.
Former City loanee Samni Odelusi scored for Cheltenham on his debut in the 57th minute.
Former City manager Russell Slade saw his Grimsby Town side beaten 2-0 at home by Morecambe.
Forest Green Rovers gave a debut to former City loanee Farrend Rawson and he played in a game in which another debutant Reuben Reid scored the only goal of the game to beat Port Vale, for whom former City defender Danny Pugh played the whole game.
Accrington Stanley went fourth after a 4-0 home victory against second from bottom Chesterfield at the Wham Stadium.