McGregor Films MAC Energy Commercial

Conor McGregor isn't letting major knee surgery slow down his business interests.

Just eight days after undergoing surgery to repair ACL and meniscus damage suffered at UFC 329, "The Notorious" was back on set in California filming a commercial for his MAC Energy drink brand.

McGregor appeared alongside fitness influencer Ashton Hall on a military-inspired set, kitted out in tactical gear and handling a machine gun as part of the shoot, showing little outward sign of slowing down despite the recent procedure.

https://www.instagram.com/reels/DcPGKqlIJmG/

"8 days post surgery. Doctor said rest. I said load the belt. This is MAC ENERGY," McGregor

The knee injury came during McGregor's comeback loss to Max Holloway at UFC 329, a fight that ended just 69 seconds into the first round after McGregor was unable to continue following an early flying kick attempt that appeared to blow out his knee.

The former two-division champion is expected to be sidelined for roughly a year before any potential return to the Octagon. In the meantime, he's pressing ahead with his business ventures, using the downtime to promote MAC Energy while beginning his rehabilitation away from the cage.