Southampton fans react on Twitter to Sadio Mane's Liverpool Champions League hat-trick

Sadio Mane of Liverpool receives the match ball from Virgil van Dijk of Liverpool after scoring hatrick after the UEFA Champions League Round of 16 First Leg match between FC Porto and...

Southampton fans react to former star stepping up for Liverpool.

Sadio Mane of Liverpool receives the match ball from Virgil van Dijk of Liverpool after scoring hatrick after the UEFA Champions League Round of 16 First Leg match between FC Porto and...

A picture to break Southampton fans hearts... Virgil van Dijk hands former Saints teammate Sadio Mane the ball after his hat-trick for Liverpool in the Champions League.

Last night Sadio Mane scored a hat-trick against Porto at the Estadio Dragao as Liverpool thumped them 5-0.

Mohamed Salah, Roberto Firmino and Mane were terrific, with the Senegalese winger stealing the show.

Liverpool's Senegalese midfielder Sadio Mane (L) celebrates with Liverpool's Egyptian midfielder Mohamed Salah and Liverpool's Brazilian midfielder Roberto Firmino (R) after scoring their...

Mane is one of several players Liverpool have signed from Southampton in recent seasons and he might just be the very best.

His hat-trick might not have been as fast as the record setting treble he scored against Aston Villa in 2016 for the Saints, but the grand stage of the Champions League made it the most important of his career so far.

Games like last night prove precisely why Mane and co swapped St Mary's for Anfield, and there is plenty left to come at Liverpool, with the club effectively booking their place in the quarter-finals.

Southampton's current struggles make it even tougher for their fans to stomach Mane's heroics, with Pellegrino's team in 18th place in the Premier League.

Here is a look at how Saints fans reacted on Twitter to Mane's hat-trick...

FIFA World Cup 2018FIFA 2018 World Cup Russia - click here for all of our coverage...

Register for LIVERPOOL team updates

Register for HITC Sport - Daily Dispatch