Chris Wilder doesn't believe Sheffield United will face a vulnerable Manchester City on Saturday.
The Sky Blues sit in 13th on the table after a sluggish start to the Premier League season.
But after City claimed a 3-0 win over Marseille on Tuesday, Wilder is wary of his opponents.
Wilder said: "I didn't see much loss of invincibility about them in the Champions League, if I'm honest. People are always doubting players and doubting managers.
"People are probably looking at us and saying things relatively on the food chain. They won't be bothered. They have got world class players, they invest in world class players and a manager who has done it all. Only an outstanding Liverpool team finished ahead of them last season."
