Jurgen Klopp has endured plenty of highs and lows during his two years at Liverpool.
Sunday’s 4-1 defeat against Tottenham at Wembley is unquestionably one of the lowest moments of the charismatic German coach’s spell as the Reds’ boss.
Klopp watched on from the touchline as his side were dismantled by Spurs, who netted three goals in the opening 45 minutes and one more in the second half.
Liverpool fans ripped into Dejan Lovren for his role in Tottenham’s opening goals - scored by Harry Kane and Son Heung-Min inside the opening 12 minutes - and the Croatian defender was subbed off with just 31 minutes on the clock.
Klopp had seen enough and sent on Alex Oxlade-Chamberlain in his place.
Lovren's big mistake costs Liverpool
Lovren’s role in the second goal was almost comical.
The 28-year-old was caught out by the flight of Hugo Lloris’s kick, allowing Harry Kane to burst down the right flank. The in-form England striker whipped the ball to Son, who produced an excellent finish past Simon Mignolet.
Video: Klopp's reaction to Lovren's mistake
The camera then cut to Klopp, whose unexpected reaction was spotted by Liverpool supporters.
As reported by the Mirror, the Reds boss appeared to laugh, almost certainly because of the ridiculousness of the situation.
Watch it here...
Liverpool fans weren't impressed with Klopp's reaction
Liverpool fans on social media, however, weren’t impressed with their manager’s reaction…
Klopp explains what went wrong
After the match, Klopp explained what went wrong.
"The whole game the whole result was all our fault - Tottenham was good, they needed to be good, but we made it much too easy for them," Klopp told Sky Sports, per the Mirror.
"The first goal was a little throw in and we are not really there. It was just really bad, bad, bad defending. The second, a counter attack, when the ball passes Dejan Lovren it is already too late.
"Coming back in the game with the goal we had our chances, but it's nothing to talk about today.
"The third one, it's a completely open situation. We make the foul, again, all our fault. The fourth - second ball and third ball for Tottenham, their desire was bigger than ours.
"The game was finished then. We came here for a result and had not one second to get a result."