The last meeting with Birmingham City will hold fond memories for David Wagner - who picked up his first win in charge at St Andrews last December.

Now, the challenge is to do it all again.

Gary Rowett's charges have been hanging around the play-off places for the majority of this season, but their hopes of a run to Wembley came to an abrupt halt with a midweek draw to Preston that leaves them 10 points off sixth with three games to go.

While that may have been the final, mathematical nail, the Blues have been struggling for form, and one win from their last nine games has left them unable to keep pace with the other contenders.

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Part of the reason is an inability to hold onto a lead - of those nine fixtures, the St Andews outfit have scored first three times and failed to convert their advantage into maximum points.

Since these two sides last met, there's been a few switches in the personnel department.

The Blues will be able to call on the services of Clayton Donaldson, who missed that day at St Andrews with injury. The 32-year-old striker has 11 goals to his name this term - but four have come in his last four appearances, including two against Preston, and he leads the way for Rowett's side in both the goals and assists columns.

However, Rowett will be missing one creative force after Jon Toral was effectively ruled out for the season with a hamstring issue. Neil Eardley's season is over, while Maikel Kieftenbeld faces a late fitness test.

The loss of Demarai Gray to Leicester City in January was a blow, but Rowett was able to bring in Northern Ireland striker Kyle Lafferty on loan. However, he's been unable find the net since his debut for the club and has fired blanks in his last four outings.

James Vaughan ineligible this weekend

James Vaughan is of course ineligible against his parent club, so will have to wait another week to continue his quest for a first goal in Birmingham City colours.

Birmingham's form in this part of Yorkshire is cause for concern.

Town haven’t beaten the Blues at home in a league game in their last seven attempts, while Birmingham’s last three league victories over the Terriers have been away from home (2001, 2013 and 2014).

That said, Town have the advantage when it comes to the goalscoring stakes this term - Nahki Wells and co have netted 57 times in the league compared with 49 for Saturday's visitors, and have been more clinical when it comes to converting their chances.

And when it comes to this fixture specifically, the Blues have scored just three goals in their last four games.

Unsurprisingly given their superior league position (9th, with 60 points), Gary Rowett has overseen a superior defensive record to Town this term, but Birmingham are looking to keep consecutive away clean sheets in Huddersfield for the first time since December 1933.

Statistically, Birmingham conjure the majority of their attacking forays down the wing, particularly the right hand side, and put in a high number of crosses.

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Unafraid to use a long ball, Town's centre back pairing had a useful grounding at Rotherham in heading the ball clear from inside the 18 yard box and would do well to heed those lessons again.

Like the Millers and Blackburn Rovers, Birmingham also have a considerable threat from set pieces with 17 of their 49 total league goals coming via a dead ball situation, including penalties.

However, they've suffered when trying to defend set pieces or counterattacks from opponents.

Neither side have anything left to play for in terms or promotion or relegation. But David Wagner has set his sights on a positive finish to the campaign - and this is one side he'd relish doing the double over.