Andoni Iraola says that he will tell his players to go down in future after Liverpool were denied a penalty in Sunday's defeat by Arsenal .

With Liverpool trailing 1-0 after Kai Havertz's opener, Alexander Isak's shirt was pulled by Jurrien Timber in the first half as he went for a header from Bradley Barcola's cross.

However, the Liverpool striker stayed on his feet and referee Andy Madley did not point to the spot.

Stuart Attwell, on video assistant referee (VAR) duty, determined that there was not enough in the tug for the decision to be overturned, but Iraola disagreed.

"There is a clear grab of the shirt," the Spaniard told Match of the Day. "Alex [Isak] was just in front of him, he was going to head in front of the goal but couldn't because he grabbed the shirt.

"If he goes to the floor, they call the penalty 100%. It should be like this but it is what it is.…