Adelaide United coach Rini Coolen believes North Queensland Fury will cause his side some problems tomorrow night.

The second-placed Reds host the bottom-placed Fury in Week 18 of the 2010/11 A-League season and Coolen says the attacking way the Townsville team play will make it a difficult prospect for his side.

"If you look at the whole season, they are one of the teams I prefer how they play," Coolen said of North Queensland.

"They play great football, they have a lot of good individual players but they have problems sometimes at the end of the game, unlucky sometimes.

"The way they prefer to play the game, they are a tough team, it will be a real tough game for us."

And Coolen said that he expects Brazilian left-back Cassio to be right to play despite a training mishap today in which he injured his ankle.

"We don't think it's a big problem, but at the end of the day, you are never 100 per cent sure," Coolen added.

"We'll make contact with him in the morning but I think he will be there tomorrow.

"It is not a muscle problem, it's a knock and it takes a few hours to recover from that.

"But of course if a player is not 100 per cent, then you can't play with him."