In an Instagram post that may have put hearts into throats of Real Madrid fans, Cristiano Ronaldo is pictured in a fighting stance against UFC star Conor McGregor in the middle of a fighting cage.

Don’t worry, it was just a photo opp.

Ronaldo, notes, is friends with McGregor’s trainer, John Kavanagh, and is on vacation in the United States. The photo was taken in Las Vegas, where McGregor is training for his rematch against Nate Diaz, set for UFC 202 on Aug. 20 at T-Mobile Arena.