Wayne Bridge has warned his Manchester City team-mates that they must be at their best against Chelsea or risk being 'punished' by his former club.
Left-back Bridge ended his five-and-a-half-year stay in West London when he signed for City in the winter transfer window.
Bridge is now set to lock horns with the Blues on Sunday, as City aim to end a poor league away record that has seen them fail to win on their travels since August.
"I am looking forward to going back and seeing some old faces," said the England full-back.
"I would like to think I will get a decent reception after the time I spent there, but who knows?
"It is not as if I have had this game ringed in the calendar or anything like that. It is more important for Manchester City to do well. We are going there to win and that is what I am concentrating on."
He continued: "We have done well against the top teams this season, so hopefully it will be the same on Sunday.
"There is a belief within the camp that we can get a positive result.
"But we will need to concentrate for the full 90 minutes otherwise we will get punished."