Iraola says the performance from the Cherries in the 4-0 rout has him concerned.
"I think it's a deserved win for Villa, obviously,” he told the Daily Echo.
“I think two different halves from our side especially, I think we were really poor the first 45 minutes, really poor.
“And I appreciate the second half we've done, with the two goals we conceded from corners at the end, it looks like more of the same.
“But from me they are two very different halves. And I'm a little worried with the first half. Because I think it's coming after a game against City where we also haven't been at our level.
“So it's two games where I think it's a warning a little bit from the competition and we have to take it like this because we've conceded too much against Villa.”