The Sky Blues slipped to defeat against Blackburn on Saturday afternoon, having played most of the game with 10-men.
City had Michael Rose sent off after just 14 minutes with Adam Armstrong scoring from the resulting penalty before he added a second goal shortly after half-time.
Further goals from Harvey Elliott and Sam Gallagher secured the points for Tony Mowbray’s men in what proved to difficult afternoon for the Sky Blues.
Mark Robins made one change to the side that drew with Swansea in midweek with captain Liam Kelly restored to the starting line-up in place of the injured Jordan Shipley.
The Sky Blues patiently worked their way up the pitch to create the opening chance when Ryan Giles found Matty Godden in the box, with the striker taking a superb first touch before hammering an effort against the left-hand post from a tight angle.
City were reduced to 10-men when Michael Rose was sent off after he pushed Ben Brereton inside the penalty area, with Adam Armstrong converting the resulting penalty to give the visitors the lead.
Blackburn created a flurry of chances soon after taking the lead with Brereton shooting straight at Marko Marosi and Armstrong drilling an effort wide.
The visitors continued to press for a second goal but were denied by an incredible save from Marosi, denying Lewis Holtby from close range before the midfielder smashed his follow-up effort wide of the target.
Holtby came close to scoring again when he was picked out in the box by Joe Rankin-Costello but couldn’t direct his header goalwards.
Former City man Armstrong tried his luck again five minutes before the break with Marosi equal to the striker’s drilled effort.
HALF-TIME: SKY BLUES 0-1 BLACKBURN ROVERS
Blackburn doubled their lead on 49 minutes when Brereton slipped in Armstrong who powered an effort past Marosi and in off the crossbar, despite the keeper getting a hand to the shot.
The visitors continued to cause City problems when Brereton cut the ball back to Armstrong with Dom Hyam getting his body in the way of the striker’s effort.
Rovers scored their third goal when Brereton played the ball across the box to Harvey Elliott who coolly finished past Marosi from close range.
The Sky Blues tested Thomas Kaminski in the Blackburn goal when Ben Sheaf found Giles in space down the left, rifling an effort towards goal that was kept out by the Rovers stopper.
Elliott and Holtby then combined down the left which ended in the latter turning the ball wide.
Holtby had another go at goal five minutes from time but could only fire just over the crossbar having worked a yard of space for himself.
Blackburn added a fourth goal on 88 minutes when Elliott cut the ball back to substitute Sam Gallagher who finished from close range.
Marosi had to remain alert right to the final whistle when he denied John Buckley before then standing tall to keep out an effort from Brereton.
FULL-TIME: SKY BLUES 0-4 BLACKBURN ROVERS
Goals: Armstrong (15’ pen, 49’), Elliott (62’), Gallagher (88’)
Yellows: Douglas (20’), Armstrong (51’), Sheaf (74’)
Reds: Rose (14’)
Sky Blues XI: Marko Marosi (GK), Sam McCallum (Pask 61’), Michael Rose, Kyle McFadzean, Dom Hyam, Ryan Giles, Liam Kelly (C), Ben Sheaf, Jamie Allen, Callum O’Hare (Kastaneer 77’), Matty Godden (Biamou 60’)
Unused Subs: Ben Wilson (GK), Leo Ostigard, Will Bapaga, Amadou Bakayoko
Blackburn XI: Thomas Kaminski (GK), Joe Rankin-Costello, Derrick Williams, Darragh Lenihan (C), Barry Douglas (Bell 62’), Tom Trybull (Buckley 68’), Bradley Johnson, Lewis Holtby, Harvey Elliott, Ben Brereton, Adam Armstrong (Gallagher 64’)
Unused Subs: Aynsley Pears (GK), Ryan Nyambe, Corry Evans, Tyrhys Dolan