LONDON -- Apparently Cristiano Ronaldo doesn't know his own strength.

Well, either that or his teammate Adrien Silva is a really, really good actor.

Footage of the two of them sat on the bench together during the France vs. Portugal final of Euro 2016 is going viral after it was shared last night on Twitter.

In the four-second clip, Ronaldo casually punches Silva on the leg -- and probably gets a stronger reaction than he was expecting.

Tweet may have been deleted

To be fair, Silva does look as though he's laughing right at the end of that clip (so it's always possible he was having Ronaldo on).

Either way, it's still a beautiful moment.

Have something to add to this story? Share it in the comments.