Following their third win on the trot in the Asian Champions League, there is now plenty of belief amongst the Adelaide United players.

The Reds, who finished on the bottom of the A-League table in the freshly-completed season, currently top Group H with an unblemished record so far and head coach Joe Mullen puts it down to a real sense of belief.

"It was a game of two halves, no doubt about that and credit to them for coming back into the game, especially with ten men," Mullen said.

"But at 75 minutes 2-1 down we needed to do something, and I think the changes with Barbiero and Cassio was very good for us, and I think the difference is the spirit that is engendered through this team now, they displayed that on the ground and the team believes in itself.

"There is a real sense of belief, will, want, tenacity, desire, all of those things and at 75 minutes there was still plenty of time to get something back."

Adelaide seem to love the Asian stage, as last time they competed in the competition (in 2008) they made it through to the final only to be beaten by Gamba Osaka and this time around, you sense they are trying to emulate that feat.

If you take into account their counterparts, Melbourne Victory, who have made three of the last four domestic Grand Finals but have not yet moved past the group stage of the ACL, then the Reds' performances must be applauded.