Gerard Pique furiously confronted the referee as Barcelona tempers flared following their 2-1 defeat by arch-rivals Real Madrid on Saturday night.
Karim Benzema and Toni Kroos struck in the first half before Oscar Mingueza pulled one back for the visitors on the hour mark as Los Blancos went top of La Liga.
El Clasico grew frantic in the closing stages, with Barcelona players and staff seething not to have been awarded a penalty for an alleged foul on Martin Braithwaite in the 84th minute.
Their anger was compounded in added time, when there was a lengthy break in play to fix the referee’s faulty equipment, only for the full-time whistle to be blown soon after.
Pique – who was an unused substitute as he returns from injury – was particularly aggrieved and confronted the referee after the match.
“You gave us little extra time, and you’ve been off the field for a long time,” the Spaniard could be heard pleading as he picked up a yellow card.
Barca delegate Carlos Naval tried to hold back the towering defender, who continued: “Let me speak, let me speak.”
Were Barcelona unfairly treated at the end of El Clasico? Have your say in the comments.
Barcelona boss Ronald Koeman was left similarly aghast by the decisions he thought went against his side late on and stormed out of his post-match interview.
“I only ask the referees to get decisions right,” said the Dutchman. “It’s a penalty and only four minutes of stoppage time was given, despite the referee having [to stop] because he had a problem with his headset.
“It’s a very clear penalty. And if it had been given it’s 2-2. It’s such a clear penalty. I don’t know why we have VAR in Spain.”
Unsurprisingly, Los Blancos boss Zinedine Zidane saw things differently in his own interview and said: “If the referee has not whistled, it is because there is no penalty.
“The extra time can be three, four, five or six minutes… He decides.”
Sign up to the Mirror Football email here for the latest news and transfer gossip.