New footage appears to show Andy Robertson nudging Ayoze Perez in the back before the Leicester City man completely lost his cool on Saturday at Anfield.
The £30million summer signing from Newcastle United then responded by shoving the Liverpool full-back – prompting players from both sides to engage in a huge brawl.
James Milner scored a penalty four minutes into added time to extend Liverpool’s club-record winning run to 17 matches and ruin Brendan Rodgers’ return to Anfield.
The midfielder held his nerve to snatch a 2-1 win – a 17th in succession in the Premier League – after James Maddison’s late goal had cancelled out Sadio Mane’s first-half opener.
Four years and a day since he was sacked by the Reds, Rodgers looked like he had become the first manager since his Foxes predecessor Claude Puel in January to prevent Liverpool winning at Anfield.
But it was the melee at the final whistle which left fans scratching their heads in disbelief, with the origins of the aggravation seemingly unclear.
A video posted on Twitter by Anfield Watch appears to show Robertson celebrating Milner’s late penalty and then barely nudge the striker with his elbow as he walks past.
Clearly annoyed, Perez shoved the Scotland captain in the back with a vengeance.
Virgil van Dijk and Adam Lallana were the closest Liverpool players in attendance and duly piled in, with match winner Milner also getting involved.
Jamie Vardy calmed the situation down by escorting his teammate down the Anfield tunnel, with both managers then giving their view on what happened.
“Andy Robertson celebrated on the final whistle and pushed [Perez], which he probably didn’t expect, which he was annoyed at,” explained Jurgen Klopp.
Rodgers said: “I think that, according to the guys, Andy Robertson celebrated and pushed him, which he didn’t expect and he was obviously annoyed by that.
“And that lead to a melee, but it was nothing.”