The Reds defeated Ole Gunnar Solskjaer's side 2-0 at Anfield on Sunday afternoon to move 16 points clear at the top of the table with a game in hand.
For the first time this season, the Liverpool fans broke protocol. For the first time this season, they allowed the mask to slip.
For the first time this season, they dared to dream.
Anfield had just heard its sweetest sound of the day, the final blast of Craig Pawson’s whistle confirming yet another victory for the Premier League’s runaway leaders, this time over great rivals Manchester United.
Jurgen Klopp punched the air, Alisson Becker fell to his knees. Ole Gunnar Solskjaer, beaten by the team he most wants to beat, wore a face like a robber’s dog.
And the Kop began to sing.
“And now you’re gonna believe us….We’re gonna win the league!”
Even former Reds center-half Jamie Carragher, up in the Sky Sports gantry, couldn't resist joining in. Alongside him, Gary Neville would rather have been anywhere else.
They’ve been wary about using that song, Liverpudlians. Desperate not to jinx their team, eager not to give ammunition to rival fans in the event – the now unlikely event – that the Reds don’t go on to deliver on their promise.
They needn’t worry about that. We’re only in January, but league championship number 19 – Liverpool’s first for 30 years – looks and feels like a formality. "Not over yet," insisted Mo Salah afterward, but it will be soon.
This win, a 2-0 victory which could and should have been even more comprehensive, takes Klopp’s team into a lead of 16 points over second-placed Manchester City.
Liverpool also has the luxury of a game in hand, just in case. They now need 10 wins from their last 16 matches to clinch their first title in 30 years, and if you’re wondering if they’re capable then remember this; they’ve won 30 of their last 31. They've lost once in the league in 623 days.