Granit Xhaka was seen making an obscene gesture in Switzerland's big World Cup win over Serbia on Friday.
The Swiss ran out 3-2 winners against Serbia at the Stadium 974 to book their spot in the last 16.
Xherdan Shaqiri opened the scoring in the 20th minute, with Aleksandar Mitrovic leveling proceedings with a brilliant header.
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Dusan Vlahovic then put Serbia in front, with Breel Embolo making it 2-2 just before the break in a thrilling 45 minutes.
Switzerland regained the lead through Remo Freuler, who made it 3-2 just after the interval.
But it was the actions of Xhaka that grabbed all the attention from the Group G clash as he was caught grabbing his manhood at the Serbia bench.
He performed the gesture in the 65th minute, angering the Serbia bench as several players reacted.
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Some of the players on the Serbia bench even made their way onto the pitch as the match referee ordered them back off the field.
Serbia manager Dragan Stojkovic ran onto the pitch to pull his players away from Xhaka while some Switzerland players tried to calm them down.
During the incident, the match referee brandished a yellow card as play eventually resumed.
Xhaka's actions towards the Serbia bench sent social media wild.
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One Twitter user wrote: "Xhaka rattling the entire Serbian bench."
A second tweeted: "Xhaka with a "Diego Simeone" to the Serbian players. He has them fuming."
A third added: "Xhaka has these boys on STRINGS."
Another commented: " is an absolute shithouse, he's rattled their whole team."
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Switzerland held on for the win, with the Arsenal star named 'Player of the Match'. They'll play Portugal in the last 16 while Serbia are dumped out of the tournament.
Topics: Granit Xhaka, Switzerland, Football World Cup, Football