Peterborough manager Darren Ferguson will be forced into at least two changes when his side travel to take on Wycombe in the Carling Cup.

Central defender Craig Morgan is unavailable after joining up with the Wales squad to play Montenegro while midfielder Paul Coutts is set to sit the game out after picking up a slight knee injury during the 2-1 defeat at Derby on Saturday .

On-loan Birmingham defender Krystian Pearce looks set to make his debut in Morgan's place alongside Gabriel Zakuani, while Toumani Diagouraga could also make his debut in midfield to replace Coutts.

Former Wycombe defender Russell Martin will hope to win his place back after being left out at Pride Park but winger Chris Whelpdale is definitely out after a hernia operation.

Wycombe manager Peter Taylor is set to name an unchanged squad.

Taylor saw his side turn in a lively performance in the 3-2 defeat at Charlton on Saturday and will name the same 18 against Darren Ferguson's men.

Midfielder Ian Westlake is out with a hamstring injury while Tommy Doherty is also sidelined with an ankle problem.

Lewis Hunt (foot), Lewwis Spence (foot) and TJ Moncur (groin) are all still injured so Adam Smith should continue at right-back after making his debut at the Valley.

Chris Westwood will come up against his former employers when he partners Michael Duberry at the heart of the defence while Chris Zebroski will be hoping to add to his brace from the weekend.

Posh could name former Chairboys Russell Martin and Sergio Torres in their squad.