The duo have been in the form of their respective carers this season, topping Premier League scoring charts.
Asked about Watkins' impact on Villa, Iraola told reporters: He's a really amazing player. He's an amazing player.
It's a little bit like Dom with us he's not just about the goals.
He scores a lot of goals, but he gives them a lot.
He brings the centre backs out, attacks the spaces.
He's very good at pressing.
He created a lot (on Sunday).
I think Zaba (Illia Zabarnyi) was covering him on that side, in this space that they create with the winger coming inside, and they leave the space for Ollie Watkins.
I think he was dealing with him quite well. But even then, with this kind of high level for me of defense, from Zaba, he finds a way to create things.
He didn't score, but probably he deserved to because he was really good - two assists."