The Spaniard's possession-based game is taking time to implement at Adelaide, who are winless since round one and sit eighth in the A-League. 

League leaders Brisbane have completed the most passes in the competition, with United second to Mike Mulvey's high-flying side in that statistic. 

Gombau said Roar's style was the best in the competition and wants his side to eventually reach their level. 

"It's an important game because we play – in my understanding – the best team in the league in terms of playing football," he told reporters. 

"It will be very interesting for us because also we are a team that try to play this football. I am excited for me and also the players because it's going to be a very good game. 

"Both teams that want to play and want to get the goal. They have results, we are not having results at this moment, but we are trying to play this way and I think it will be an interesting game." 

Gombau said Roar held an advantage over his side, having worked together on their style for several seasons.

The former Barcelona youth coach backed his team to keep more of the ball and stop the Roar from executing their plans. 

"We'll keep more of the ball – have an advantage. Both teams are comfortable with the ball," Gombau said. 

"At the moment, the team that can have more of the ball they have more chance to play their style. It is important who keeps more of the ball." 

Adelaide, who drew 3-3 with the Melbourne Heart on Sunday, will welcome back Jon McKain, while there could be other changes to their starting 11. 

Having conceded an equal league-worst 15 goals this season, Gombau said his side had worked on their defending in the lead-up to the Roar clash. 

"We need to fix some tactically situations so they don't create us problems," he said, pinpointing his team's decision making and movement. 

"This is what we're working on because it's important."