Despite the devastating defeat, Haaland could be seen smiling as he talked to Virgil van Dijk after the full-time whistle and joking with Mohamed Salah after the Egyptian made it 2-0 from the penalty spot, which angered many of those watching.
X user @MitchHalley summed up the frustration, writing: "Haaland is a f*cking disgrace laughing and joking with Liverpool players when getting beat."
@AaronBx21 added: "Haaland laughing with Salah after we go 2-0 down!! I've seen enough of that sh*t lanky c***, get him gone."
"Haaland laughing after that performance would have my head on mars if I was a City fan," said @NathanShapland_, while @sneakyshaunny added: "Haaland has no shame, still laughing and joking, pathetic mentality."
Another fan, @PIreland33, agreed, saying: "Haaland walking around laughing and joking with all Liverpool players, [I'd] be fuming if that was one of our players having been invisible for 5 games."
"Haaland's non-performances supplemented by laughing and joking with opposition defenders during this run needs addressing, needs to sort himself out," said @Dobs85Y.
A furious @Ryan_vanmanen wrote: "Haaland busy smiling the f*cker does nothing and still wants to make jokes. Your first touch is a joke why don't you laugh about that."
And @moloneyrobert said: "Something very wrong at City. Haaland laughing and joking with the Liverpool players after the match after losing to their main title rivals."