David Murphy has expressed confidence he will be fit and raring to go for Blues’ next game.

Murphy admitted he struggled to move during the second half of Blues’ vital win over Peterborough United.

A knee injury which had kept him out of the previous two matches flared up.

The left-back suffered bone bruising after taking a knock in training in the run-up to Blues’ trip to Watford.

“We were playing with ten men for the last 20 minutes,” Murphy confessed.

“I couldn’t move.

“My knee swelled up again but I’ll get that right and get ready for the Nottingham Forest game.”

That’s when Blues are next in action after the international break, on September 15 at the City Ground.

Lee Clark gave loanee Ben Gordon his debut at Vicarage Road and he stayed in the team for the Capital One Cup upset at Coventry City.

But on Murphy’s return for Posh, Gordon didn’t make the 18 – Mitch Hancox got the nod for the substitutes bench.

Gordon played in the development side’s 3-2 defeat of Barnsley on Monday in the Under-21 reserve league.

He arrived from Chelsea not having figured in pre-season due to a thigh injury and his lack of match sharpness has been evident in his first-team appearances to date.

Murphy was arguably the best left-back in the Championship last season. And certainly he was in the form of his Blues career.

Clark has made a point of singling out Murphy and Stephen Carr as vital players for his side, and how their injury absences have hurt Blues.

Carr should be available for the Forest clash as well after being sidelined since the last week of pre-season due to a thigh injury.