Don't worry Real Madrid, it's just a photo op.

Cristiano Ronaldo met up with UFC superstar Conor McGregor in Las Vegas this weekend, squaring up with the featherweight champion for a picture in the Octagon:

Great to see you bro!!

A photo posted by Cristiano Ronaldo (@cristiano) on

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Ronaldo, who is friends with McGregor's trainer John Kavanagh, is currently vacationing in the United States, so obviously one of the stops had to be Las Vegas. McGregor is preparing for his big welterweight rematch with Nate Diaz at UFC 202 next month.

It's foolish to think any soccer player would survive a round in the cage with McGregor, but if there was ever one to pose 'The Notorious' a problem, wouldn't it be the powerful freak of nature that is Cristiano Ronaldo? Like, look at this:

My brother Ronaldo dropped by the gym today! He is an animal. Thank you @cristiano, much respect! I will see you for that Forbes number 1 spot next year. #ThisIsTheMacLife

A photo posted by Conor McGregor Official (@thenotoriousmma) on

Standing at 6-foot-1, Ronaldo has a significant size and reach (not to mention tan) advantage over the 5-foot-9 Irishman, and despite suffering a knee injury in the Euro final three weeks ago, still looks as shredded as ever. He also never skips leg day. On the other hand, Ronaldo isn't, you know, in the UFC.