Southampton kicked off the game with an early goal, just 9 minutes into the game with Long converting the simplest of chances from close range.
Bertrand was afforded acres of room down the left flank and he floated a cross into the box. Hojbjerg headed the ball towards the penalty spot. Long, who was unmarked, took a touch before dispatching his strike low into the bottom corner.
The Reds put the Southampton goal under pressure with a series of crosses into the box. The third delivery was on the money from Alexander-Arnold and Keita rises at the back post to direct his header towards the bottom corner. Gunn gets a hand to the ball, but was not strong enough to keep it out of the net.
Klopp’s men didn’t stop there, 6 minutes later, Henderson completed the rout for the Reds as he made a run into the box and latched on to Firmino’s low cross. The Liverpool skipper guided his effort beyond Gunn into the bottom corner and deliver the three points.