Conor McGregor appeared in an octagon again after 5 years, and images of the former UFC champion show a face that seems to have aged much more than the calendar suggests.

Just five years ago, McGregor was the most feared man in mixed martial arts, with that defiant look that made him a millionaire and famous around the world.

Today, that same face looks different. More tired, more weathered. And that was enough for thousands of fans to start wondering what really happened to the Irishman during all this time.
