Conor McGregor will undergo surgery for the leg injury he sustained at UFC 329 and plans to return to the octagon, he announced Monday on Instagram.

Conor McGregor broke his silence after the UFC 329 knee injury, denying he entered hurt and calling the aftermath hell. Doctors are split on ACL versus meniscus.

Conor McGregor's UFC return lasted 69 seconds after his knee buckled on a jumping kick. Here's the sequence, the 2013 ACL history and what comes next for him.