Liverpool maintained their 100% start to the 2019/20 Premier League season on Saturday with a last-gasp win over Leicester City.
Sadio Mane broke the deadlock at Anfield only for James Maddison, who was returning from injury, to equalise in the 80th minute.
But then, deep into stoppage time, Marc Albrighton clumsily fowled Sadio Mane inside the box and Liverpool were awarded a penalty.
Captain James Milner stepped up in Mohamed Salah's absence to tuck away the spot-kick and extend their lead at the top of the table to eight points.
Liverpool's players understandably celebrated at the final whistle, which sparked an angry reaction from Leicester's Ayoze Perez.
Cameras caught Perez tussling with the likes of Andy Robertson and Adam Lallana and at the time it was unclear what exactly had happened.
Fan footage showed Lallana clashing with Jonny Evans and Caglar Soyuncu for the way he celebrated Liverpool's winner, but now we have definitive answers.
Australian sports channel Optus Sport replayed the incident from the very start after the game and it showed Perez shoving Robertson rather hard in the back.
That's when everyone else got involved, but it has to be noted that Robertson gave Perez a cheeky elbow as he walked past. Check out the extended video below.
It seems Robertson's dig and celebrations tipped Perez over the edge, which is basically what Jurgen Klopp said in his post-match interview.
"Andy Robertson celebrated on final whistle and pushed [Perez], which he probably didn't expect, which he was annoyed at," the Liverpool manager said.
Brendan Rodgers had the same theory based on what he was told in the dressing room but played down the incident by saying it was "nothing".
Case closed.
Perez could hardly be blamed for being frustrated considering Leicester had just lost the game and Robertson's actions only made things worse.
Not that Liverpool's players care - they're now eight points clear of reigning champions Manchester City, who will look to close the gap to five against Wolves on Sunday.