Conor McGregor is determined to avenge his loss to Nate Diaz earlier this year.

He gets his chance at UFC 202 next month. The UFC featherweight champion is training harder than ever, determined to prove that Diaz's win was a fluke. But even in the middle of his training camp in Las Vegas, McGregor obviously made himself available when the world's biggest football star dropped by the gym to say hello.

Cristiano Ronaldo, the Real Madrid and Portugal star, paid a visit to McGregor's gym in Las Vegas, where he was afforded a first-hand view of the preparation McGregor is undergoing to get ready for the Diaz bout. After his workout, McGregor and Ronaldo faced off in the Octagon for a photo posted on Ronaldo's Instagram account.  

[instagram url="https://www.instagram.com/p/BIQvUvQgo7_/" hide_caption="1"]

McGregor also posted a photo of the pair standing side by side. 

[instagram url="https://www.instagram.com/p/BIQ3pK_h2Tb/" hide_caption="1"]

Did Ronaldo, one of the world's best free kick specialists, offer McGregor any leg kick pointers? We'll have to wait until UFC 202 to find out.