The Liverpool No9's unique style makes him a key weapon for Jurgen Klopp and the Brazilian proved his worth once again in the first half at St Mary's.
Florida boy climbs into vending machine, gets stuck
At the point when the boy escaped the machine he finished leaving with a stuffed football and a couple of different prizes. Commenters were pleased with happy-ending story and impressed with the agility of the child, whose age was not provided.
Klopp's side could have added further gloss to the scoreline as they missed a couple more opportunities, but Southampton never looked like fighting back and Liverpool successfully capitalised on United's 1-0 defeat at Newcastle United earlier on Sunday.
The Reds have now lost just one of their last 18 Premier League games, whereas Southampton equal an unwanted club record of seven successive home games without a Premier League victory. "They will want to show their quality but we have our own targets".
It will be a symphony of boos and hostile reception for the handful of ex-Saints in the Liverpool team - with van Dijk the latest to experience the treatment from Southampton fans after he left for Anfield on acrimonious terms in January.
Southampton manager Mauricio Pellegrino said: "Liverpool is a huge possibility for us but a really tough side". For the first, arriving after just six minutes, Salah spotted Firmino's darting run into the area. "But I think we deserved the three points, clean sheets and no injuries, it was flawless".