Jed Wallace insists that the group have full belief in their qualities following a 1-1 draw in South Wales.
An exquisite 30-yard free-kick from the Lions' number seven saw Millwall pick up a point away from home against a familiar face in Neil Harris.
Speaking to millwallfc.co.uk, Wallace expressed his delight at being able to give something back to the traveling faithful.
"It felt nice when it went in," he said. "I'm my own biggest critic and I was disappointed with last weekend, I cost the lads and made a mistake.
"There's no downside of being a footballer. Yeah you have to leave Christmas Day, but that's not the end of the world. For the fans to sacrifice presents and put their hands in their pockets to get up here, in the drizzling rain, fair play to them. I'm just glad that our away form is rewarding them for all the support they've shown"
The fixtures don't stop there for Rowett's men, with The Lions taking on both Brentford and Luton at The Den in the next five days. However, the Lions' winger believes the group are beginning to show Play-Off form.
"We feel at the moment that we're one of the top teams in the division. The last 11 games we've shown play-off form and we want to keep it up. Certainly we can hurt any team, especially on the transitions. We'll go into it giving it all we can and seeing where it'll take us."
Watch Jed Wallace's full post-match interview after Cardiff above.