Micah Richards and Robinho should be available for Wednesday night's Carling Cup semi-final.

Richards was substituted at half time of Saturday's win over Middlesbrough after picking up a groin problem, while the Brazilian did not travel to Teesside due to a knee injury collected in training late last week.

Speaking on Monday afternoon, Blues boss Roberto Mancini said: "I think that Micah will be available to play, he had a groin problem but it has not been too serious. Robinho is fine as well and has been back in training. De Jong is OK again after we took him off on Saturday with a calf problem."

There is a good chance that I will play Boyata again because I don't have a lot of defenders at the moment. He could have that chance because he played very well at Middlesbrough.

...Mancini on Boyata's chances of playing vs Utd...

Another not in the squad at the Riverside was Shaun Wright-Phillips, whose ankle niggle has kept him out of the side since the win over Sunderland. Mancini is keeping an open mind over the winger, as well as striker Roque Santa Cruz.

"We will see how Shaun is today for the first time, but it's possible that he will be available as well," he declared. "We are not certain on Roque, we will have to decide after taking a look at him today but we do not want to take a risk on him.

"Stephen Ireland is definitely out for the derby, and Nedum Onuoha is also unavailable."

The boss will play the waiting game over selection for Wednesday and take two more training sessions into account, although Saturday debutant Dedryck Boyata is very much in with a shout of facing United.

Mancini added: "I will only decide what my team will be on Tuesday after the final training session when I have seen the condition of the players, but there are not a lot to choose from."