Football fans, journalists and ex-players slammed Sevilla star Joris Gnagnon for his cynical foul on Liverpool youngster Yasser Larouci.
The Reds took on the Spanish side in a pre-season match at Fenway Park tonight as part of the club's US tour.
And the 'friendly' was marred by Gnagnon's actions in the second half.
He was instantly shown a straight red card for the shocking kick which saw Larouci stretched off the pitch.
Sevilla went on to score a later winner once they had been reduced to 10 men, with Alejandro Pozo getting the goal after earlier strikes from Nolito and Divock Origi.
The final score was 2-1 - but unfortunately the match will be mostly remembered for what Gnagnon did.
Here is some of the reaction to the incident:
Liverpool's pre-season tour continues later this week with the final match against Sporting Lisbon in New York.
Jurgen Klopp will be hoping his side can finish on a high after defeats to Borussia Dortmund and Sevilla.
The Reds then fly home for the last couple of weeks of preparations ahead of the new campaign.
