Ronaldo was the victim of two crunching fouls delivered by Chelsea flop Kalidou Koulibaly in the first half. Some Al Nassr players had to be held back after the second as Koulibaly struggled to contain the dangerous No 7.
And tensions also flared after the referee awarded Al Hilal a penalty immediately after Ronaldo's equaliser, sparking a heated exchange with rival boss Jorge Jesus.
VAR correctly overruled the decision, though, and Ronaldo went on the have the last laugh.
However, Al Nassr will be concerned over their star man's fitness after he was carted off with a painful-looking injury in the 115th minute.
Cristiano Ronaldo proved he remains the most clutch footballer in history as he netted a brace to fire Al Nassr to a 2-1 win against Al Hilal in the Arab Club Champions Cup final. Al Nassr fought back from a goal down to seal Ronaldo's first piece of silverware since his Saudi Arabia switch.
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Ronaldo's wait for silverware in Saudi Arabia is over after falling short in last season's Saudi Pro League and Kings Cup.
Ronaldo was Al Nassr's standout star, as he often is, and forced extra time with his 74th-minute leveller after Al Hilal's Michael mocked his famous 'Siu' celebration in the first half.
The 38-year-old thought he fired his side into the lead in the early stages of extra time before Ali Al-Boleahi produced an
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