Why Cristiano Ronaldo denies swearing at his coach Fernando Santos?

Cristiano Ronaldo denies he swore at coach Fernando Santos in Friday's match

The Portuguese star claims his comments were aimed at a South Korean player

Ronaldo was substituted in the 2-1 defeat to South Korea in the final group game

Both Portugal and South Korea have advanced to the knockout stage in Qatar

Ronaldo comments were directed at a Korean player who he told to 'shut up' in Portugal's 2-1 defeat in Group H finale

Portuguese media said the former Manchester United, Real Madrid and Juventus player, who left the English club, appeared to challenge Santos over the decision to substitute him.

"What happened was before my substitution, the South Korea player told me to get off quickly.

“I told him to shut up as he doesn't have that authority. There was no disagreement (with the coach)," Ronaldo says

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