What a difference 45 minutes can make. Liverpool's scintillating first-half performance against Southampton had fans dreaming of a top four finish and Champions League qualification.
Philippe Coutinho and Daniel Sturridge had helped the Reds to a 2-0 lead inside the first half hour at St.Mary's, and the three points would move the Merseyside-based club up above Southampton and Stoke into seventh place, just four points off Manchester City.
It could have been much more than two had Sturridge put away another good chance but not to worry; Jurgen Klopp's men were cruising at the half time whistle.
They say in football that 2-0 is the most dangerous scoreline and that certainly proved to be the case as Liverpool came undone. They looked to have got away with one when Saido Mane saw his penalty saved by Simon Mignolet just minutes after the re-start, but the Senegalese forward atoned for his error to make it 2-1 just after the hour-mark.
With Liverpool on edge, striker Graziano Pelle looked to have earned his side a point that had looked a million miles off in the first half - before Mane struck again with four minutes to go to snatch the win. Simply put, it was just an incredible game.
Liverpool fans have of course been venting their disbelief online at the result, which all but ends their top four chances despite the fact they still have one game in hand on their rivals.
There was one man who seemed to bear the brunt of their frustration; defender Martin Skrtel. The veteran came on for Dejan Lovren, who had seemingly picked up an injury, for the second half.
The problem was that Skrtel was only just on his way back from injury having been building up his fitness with Liverpool's U21 side - and he certainly looked off the pace as he gave away the penalty that Mane missed.
Boss Jurgen Klopp will now look to pick up the pieces with just nine games of their season remaining. In a week where Liverpool were on a high having beaten rivals Manchester United in the Europa League, the German boss faces one hell of a task to re-focus on the task in hand.