Lionel Messi has been caught on camera shoving Andy Robertson in the back of the head during Liverpool and Barcelona's Champions League semi-final.
Tempers flared during Liverpool's astonishing 4-0 win, which overturned Barcelona's 3-0 lead from the first leg.
Robertson had been seen shoving Messi's head in the opening minutes of the Anfield clash, and there was an ongoing battle between the Liverpool left-back and the Barcelona star.
And it seems Messi got Robertson back later in the game for his early antics, as footage shows him walking up behind Robertson and pushing his head forward.
Liverpool captain Jordan Henderson intervened in a bid to calm the situation. But Messi continued to argue with Robertson and the referee eventually separated them.
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Messi was not the only Barcelona player to target Robertson, as the left-back did not emerge for the second half after being injured in a clash with Luis Suarez.
Everyone is going on about Robertson shoving Messi in the head . Messi did the same back . Love Hendo coming to his friend’s defence #ThatsOurCaptain #LFC pic.twitter.com/QoF1ifhtUr — shajma (@shajma) May 8, 2019
Scotland international Robertson, who was replaced by two-goal hero Gini Wijnaldum at Anfield, is being assessed by Liverpool's medical staff ahead of the weekend that will decide the destination of the Premier League title.
But he is not considered to be a doubt for the Champions League final against Tottenham Hotspur on June 1, according to the Liverpool Echo .
James Milner filled in at left-back for the second half against Barcelona on Tuesday, and the Yorkshireman could be asked to play there again against Wolves on Sunday.
But Robertson will return for the Champions League final against Tottenham in Madrid.
Robertson was asked about Suarez's kick on him after the semi-final, and told BT Sport: "Who’s going to the final? We are. That’s all that matters. Gini went on (for me) and scored two. I don’t care right now."
He later elaborated on his injury, saying: “They’re confident that it’s just a nerve or whatever and it can be maybe a couple of days, but we’ll wait and see.
"We can’t really comment until I get the scan, but I’ll be saying my prayers tonight."
Liverpool are hoping Manchester City fail to beat Brighton at the Amex Stadium on Sunday, meaning any victory for them over Wolves will give them the title.