Cristiano Ronaldo made his feelings known during Al Nassr's latest title setback.
The Saudi Pro League side were beaten 3-2 at home by Al-Ettifaq, formerly managed by Steven Gerrard, on Friday night.
Gerrard's old club twice came from behind to secure all three points thanks to a brace from ex-Liverpool star Georginio Wijnaldum.
Ronaldo failed to get on the scoresheet in a frustrating night for the hosts, which ended with Jhon Duran seeing red in stoppage time.
The referee's decision to send the former Aston Villa striker off enraged Ronaldo, who could be seen protesting the decision.
After arguing with the referee, the 40-year-old confronted the assistant referee inside the centre circle.
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Ronaldo's emotions became too much for him, though, as he then booted the ball from the centre circle and off the pitch.
He continued his protests as he approached the touchline, gesturing with his arms as his arguments went on.
The five-time Ballon d'Or winner's outburst came in front of unified world heavyweight champion Oleksandr Usyk.
Ahead of kick-off, the Ukrainian was presented to the crowd inside Al Awwal Park in Riyadh.
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Usyk sported a personalised Al Nassr shirt as he waved to fans and performed Ronaldo's trademark 'siu' celebration.
His appearance came ahead of Saturday's mouth-watering Last Crescendo card in Saudi Arabia.
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As for Ronaldo and Al Nassr, their title hopes suffered another hit with the defeat to Al Ettifaq.
Stefano Piolo's side have now slipped to fourth in the table behind Al Qadsiah following the loss.
Speaking in his post-match press conference, Al-Pioli appeared to criticise both Duran and Ronaldo for their antics.
“I'm not happy with the red card, [but] our players have to be calm,” he said.
He added: “We could have played better, but mistakes cost me a lot today and caused the loss. Today’s match started well and we took the lead, but what made the difference were the mistakes.
“Everyone is responsible for mistakes, I am the first one responsible for correcting mistakes and we do the work very seriously.
"We did not lose the match for tactical reasons, but because of the individual mistakes we made.”
Al Nassr are now eight points adrift of league leaders Al Ittihad having played a game more.
Ronaldo remains the league's top scorer, though, with 16 goals in 20 appearances this season.
He sits one goal clear of former Real Madrid team-mate Karim Benzema.
