The Blues take on City at Wembley this afternoon for the chance to meet Wigan Athletic in the final.
Mikel admits that Roberto Mancini's side are a good team, but is confident that Chelsea can come out on top.
"If we get a good result, it will end their season," he said.
"It is a game we are looking forward to and it is going to be a difficult one. City are playing well.
"They beat [Manchester] United at Old Trafford so they have this confidence. But we have to go out there and do what we normally do."
Chelsea face City at 4pm this afternoon.