After a fine couple of weeks, Liverpool supporters came crashing back down to earth after watching their side surrender a two-goal lead at St Mary's on Sunday afternoon.
Jurgen Klopp's side were in control at the interval - goals from Philippe Coutinho and Daniel Sturridge handed them a first-half lead - but things took a dramatic turn for the worse in the second period.
A brace from dynamic midfielder Sadio Mane and a goal from Graziano Pelle, handed Southampton all three points, leaving Jurgen Klopp in despair on the sidelines.
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The revered manager, who masterminded Liverpool's two-legged Europa League victory over rivals Manchester United, could only watch on as his side crumbled.
It's fair to say that Klopp's substitutions didn't exactly pay off. Defender Martin Skrtel replaced Dejan Lovren at half-time and the former quickly conceded a penalty.
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Mane went on to miss from the spot, but he quickly made up for it. Skrtel, however, looked way off the pace throughout proceedings.
Another one of Klopp's substitutes, Christian Benteke, also endured a tricky spell: the Liverpool striker had a glorious opportunity to once again put Klopp's side in control, but he fluffed his lines.
Klopp, unsurprisingly, wasn't impressed. Following the encounter, while still on the sidelines, the German coach appeared to give the striker a telling off.
You can watch the clip here:
Klopp later played down the incident, claiming that it's his job to talk to his players, but Match of the Day 2 pundit Alan Shearer hit out at Klopp over his handling of the situation.
As per the Daily Mail, the former Newcastle United striker stated: "I understand that he's not his player, I don't think he fancies him. He didn't sign him. I understand all of that but I wouldn't take too kindly If I was a player and he came on to the pitch in front of 32,000 and let his feelings be known.
"No problem if he wants to give him a telling off, or whatever it is, but do it in the dressing room, in the four walls in front of the rest of the players, not in front of all the fans."
One thing is for sure, Benteke has it all to do to save his Anfield career. Ultimately, it just doesn't look likely that he's going to have a long-term future under Klopp's guidance, but stranger things have happened.
Was Klopp right to criticise Benteke on the sidelines? Have your say below!