That's likely a wrap to McGregor career. Shame.
I was so pumped for the fight, and agreed it was a terrible ending. I think he must have cracked it on one of his leg kicks and then it just caved in on him.
He survived that round and would have come out guns blazing in the 2nd, fight would have been over one way or the other within the first 2 minutes of round 2 had it happened
Alas...