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Ronaldo's first was from the penalty spot, which was awarded after he was floored by PSG goalkeeper Keylor Navas' forearm smash into his face, leaving him with a badly bruised cheek.

If he had, he would know that a forearm smash is dangerous and a goalscoring opportunity is not.

Neither could he have suffered a forearm smash.

They avoided touching hands but wound up caught somewhere between a fist bump and a forearm smash.

Jordan Ayew was fortunate to escape a red card after the VAR decided to take another look at his forearm smash on Josh Brownhill.