Inconsistent is the word for Bristol City at the moment, with Holden's side succumbing to defeat to an out-of-sorts Rotherham side only a few days after overcoming Blackburn Rovers in the second tier.
First-half goals from Matt Crooks and Michael Smith saw Rotherham condemn Bristol City to their sixth defeat of the league season, while Chris Martin saw his equaliser chalked off on a frustrating afternoon for Holden and co.
The Robins witnessed every side in the top six march to victory on matchday 18, but Bristol City sit just one point adrift of the playoff places despite winning two of their last six, with Holden's men currently enduring a mixed run of losing one then winning one in the Championship.
The Robins faithful are likely to see that run continue against Millwall this weekend, with the visitors slipping closer and closer to danger after a torrid spell of results in the past couple of months.
Millwall hit the dreaded 10-game mark without a victory to their name at the weekend as Middlesbrough cruised to a 3-0 victory over Gary Rowett's strugglers on Saturday afternoon.
Duncan Watmore bagged a brace for Boro as Marcus Tavernier also netted in the opening 20 minutes, with Millwall unable to recover from that early flurry of goals as they dropped down to 17th in the table.
The Lions' relatively strong start to the season is a thing of the past now and Millwall have now tasted defeat in three of their last four matches in the Championship, although Rowett's men are still eight points clear of the drop zone and have no need to be pressing the panic button at this moment in time.
Bristol City have only managed to pick up one win from their last eight encounters with Millwall, with the Lions winning 2-1 away before the two clubs played out a 1-1 draw at The Den last season.
Bristol City Championship form: DLWLWL
Millwall Championship form: DDLLDL
Bristol City left-back Jay Dasilva has seen his shin problems flare up again in the last few days and did not play a part against Rotherham - he remains a major doubt here as well.
Bristol City possible starting lineup:
Bentley; Hunt, Vyner, Kalas, Rowe; Nagy, Brunt, O'Dowda; Semenyo, Diedhiou, Wells
Millwall possible starting lineup:
Bialkowski; Hutchinson, Cooper, Pearce; Romeo, Woods, Thompson, Malone; Wallace, Bodvarsson, Bennett
We say: Bristol City 2-1 Millwall
Bristol City were not at the races against Rotherham, but Holden's men should have no such trouble on their own turf against a lowly Millwall outfit. The hosts do have a plethora of injuries to contend with, and while Rowett has demanded a reaction from his side at Ashton Gate, we do not expect the Lions to make the journey back to the capital with something to show for their efforts.