Tottenham defender Eric Dier cut a frustrated figure after their 1-1 draw with Sporting CP in the Champions League.
The London club were denied a late Harry Kane winner through a controversial VAR decision.
Dier confronted the referee about his choice to ultimately chalk off Kane's late winner, which Spurs felt should have stood.
Late in the game, Dier was among the players pleading with the referee to explain why the goal was disallowed.
The referee can be seen saying “It was offside," to which Dier responded "But why?! Why?! The ball went backwards!"
Spurs coach Antonio Conte was sent off amid the mayhem, and criticized the referee to reporters post-game.