Cristiano Ronaldo has stormed off the pitch before the end of the game after what appeared to be a clear goal was no given in the final moments of Portugal's World Cup qualifier.
Portugal and Serbia were locked at 2-2 in the 92nd minute when Ronaldo got on the end of a long ball in the box.
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The Juventus forward appeared to tap the ball over the lined after rounding the keeper, but a Serbian defender swept back and kicked it out.
Ronaldo became incensed when the goal wasn't given, with goal-line technology not in use, and argued with the linesman.
After letting out his frustration to no avail, Ronaldo tore off his armband and threw it down as he stormed off the pitch before the end of the match.
Fans on social media were equally stunned at the decision, which ultimately cost Portugal the three points in the World Cup qualifier.
Ronaldo criticised for armband throw
Some fans were critical of Ronaldo for disrespecting the captain's armband, while playing for his country.
Serbia top the World Cup qualifying group after the 2-2 draw.
Liverpool's Diogo Jota put Portugal ahead before Aleksandar Mitrovic and Filip Kostic levelled the match.
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