Jurgen Klopp outlined to his Liverpool team how they could find space against Arsenal during the half time break at Anfield on Saturday.
That's according to Reds right-back Trent Alexander-Arnold, who says the German even used footage from the first half to explain his point.
Liverpool lead Arsenal 1-0 at the break after Joel Matip thundered a header past Bernd Leno, but they weren't having everything go their own way.
After the break - following Klopp's intervention - Liverpool took the game to Arsenal and routinely opened them up with Mohamed Salah skinning David Luiz on more than one occasion and even winning a penalty against him.
On Klopp's half time team-talk, Alexander-Arnold said: "The gaffer showed us a bit of [footage] at half-time and we could stretch them, with Mo, Bobby [Firmino] and Sadio [Mane], and get it into feet.
"They probably set up knowing that we were going to cross it, they were ready. [Against] other teams we try to create the yard and cross it from in front.
"The gaffer said to us at half-time, if we get a runner down we can get the ball down the outside. [For Salah's first], [Jordan] Hendo takes the ball out the way and I'm able to play it into Bobby and we got the pen.
"That was the idea, to drag a centre-half out and not allow them to stay in and head the ball away."
