Ahead of the biggest fight of his career, Conor McGregor is in training.

The UFC lightweight champion has forgone the various aspects of mixed martial arts to focus on one sole discipline of combat — boxing. And in what looks set to be the biggest fight of all time, he’ll be facing Floyd Mayweather, the man widely regarded as one of the best defensive boxers of all time.

With the first look at a historic training camp, in a gym specifically constructed for this very purpose, McGregor works the bag, combing head movement with select shot, all the while building cardio for the twelve round fight that takes place August 26.

Check it out below:

—