Ronald Koeman's men pulled off a stunning victory against the Reds.
Victor Wanyama has insisted that he always believed that Southampton had the capability to turn their game with Liverpool around, even when they went into half-time 2-0 down to the Reds, Sky Sports reports.
Goals from Philippe Coutinho and Daniel Sturridge appeared to kill the game off within the first 22 minutes, and would have understandably had Saints fans concerned given the 6-1 scoreline from the last time these two sides met.
However, a brace from Sadio Mane and a strike from Graziano Pelle saw Ronald Koeman's men complete a stunning turnaround in the second-half. And Wanyama - who was brought on at the break - claimed that he always knew that the squad had the ability and spirit to fight back.
"I know the team never gives up and I went in there knowing we could do something and still believing we could get something from the game," he told Sky Sports.
"It was a tough game. Liverpool are a really good team and the result was fantastic. I think the whole team played really well."
With Saints' last two games seeing them beat the two teams that are sat directly below them in the table, Koeman's squad will have plenty of belief heading into the final seven games of the season that they can once again qualify for the Europa League, especially given the manner with which they won against Liverpool.
But with three of the top four still to play in their remaining games, they may need plenty more of that fighting spirit if they hope to book their ticket for Europe next year.