Luis Suarez and team-mate Sergi Roberto both saw red cards whilst Atletico's Yannick Carrasco was also shown his marching orders.
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And whilst the trio are set to serve suspensions, defender Aleix Vidal could also face retribution as video footage emerges of him swearing at opposing manager Diego Simeone.
After the final whistle, Vidal flashed the well-known Spanish gesture towards Simeone who had his back turned.
The 27-year-old has cut a frustrated figure for the majority of the season having failed to impress boss Luis Enrique.
Luis Suarez received a red card for an elbow in the 1-1 drawGetty ImagesBut the Uruguayan did net for the opener to send Barcelona on their way to victoryAP:Associated Press
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Aleix Vidal has struggled to cement a place in Barcelona's first-team this seasonAP:Associated Press
He has started just four La Liga matches but with Roberto set to miss the final, he could be handed his opportunity to impress.
The holders are firm favourites to defend their title as they await the other semi-final between Alaves and Celta Vigo.
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