The Cherries host Brentford later today.
Iraola said: "They are a very good team. It's going to be difficult.
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"We are two teams that are not so different. They are also a pressing team and prepare set plays very well. Their transitions are very good.
"It's going to be difficult to impose our game, and the same for them."
On the comparison between the club's strikers, Dominic Solanke and Ivan Toney, Iraola added: "I think they are different. Toney is more like a number nine playing around the box, he's a very good finisher and gifted technically.
"Dom is very good technically, he loves to attack the spaces outside more. Dom could also play very well with another attacker, he has the technical ability to play deeper. They are both very good."