There was only one player of the match for the Cherries and that was back-up goalkeeper Mark Travers.
On Saturday usual stopper Kepa Arrizabalaga was a shock absentee after sustaining a muscle issue in training.
So stand-in keeper Travers was given his second start of the season, and his 20th overall in the Premier League, and impressed with a number of crucial saves.
Boss Iraola later told BBC Match of the Day that Travers kept the visitors in the game.
He was Bournemouth's key performer, along with second-half substitute Evanilson who only touched the ball nine times but still managed to make an all-important impact.