The Blades are unbeaten in the Championship this term, winning three and drawing three of their opening six games having suffered play-off final heartache at Wembley back in May.
And Coleman wants to see his players stand up and be counted on home turf as they look to end a four-match winless sequence.
"It's going to be a tough one," he told Sky Blues Player. "They've had some good results, they've gone to Reading and won 3-1, they've got a draw at Boro, they've drawn with West Brom.
"They are a strong team, a good team, one of the best teams in the division and we'll be up against it. Physically they're very, very strong and well organised, they've got good experience. They didn't reach the play-off final last year for nothing.
"This will be our toughest test and we've got to see how we shape up."