Nope, he couldn't hold his hands up to defend himself...
People don't have to fall down to be finished.
Anyone watching that fight could see Mcgregor was finished. To let that fight go on would be to ask for Conor to get hurt.
For a minute there I forgot it was a boxing match. I was watching off UFC feed. Glad they both were able to share hugs and congratulate one another.
Cha Ching