Hunt and Collison in action as Blues suffer first U21 defeat of the season
Stephen Hunt continued his comeback from his calf injury with Jack Collison making his third appearance for the U21s and Jack Marriott started after returning from his loan spell at Carlisle.
The visitors also had experience in their ranks with Anthony Gerrard (knee) and Martin Paterson (calf) starting for Huddersfield as they returned from injury.
Cory Galvin gave Blues an early lead with a superb curling effort but the Terriers fought back with two goals from Martin Paterson and further strikes from Phillip Billings and Matthew Crooks giving them the victory.
Town started brightly and Marriott forced Lloyd Allinson into early action, the ‘keeper gathering the striker’s header, then diving to his right to make a save low down.
Joe Lolley made in-roads for Huddersfield, making a good run through the Town defence and finding space to shoot but his effort was gathered by Michael Crowe.
Galvin found the net in the ninth minute to put Blues in front, his superb right-footed curler leaving Allinson helpless as it nestled in the top corner.
Five minutes later and the scores were level when former Burnley striker Paterson was sent through on goal, the Northern Ireland international firing across Crowe into the far corner.
The Terriers came close to a second when Omar Sowumni misjudged his headed back-pass, putting Paterson going through on goal but Crowe did enough to prevent the visitors going ahead.
Huddersfield would not be denied though and Billing’s long-range effort appeared to take a deflection off Hunt before finding the net early in the second-half.
The visitors extended their lead three minutes later as Crooks twisted and turned on the edge of the box before sending the ball flying high into the net.
Huddersfield made it four to wrap up their victory with Paterson who buried his shot past Crowe from inside the Town box.