I agree, the bodywork was taking its toll. But why is Kovalev so impacted by the bodywork? The same thing happened against Ward. Maybe the bad choices made outside of the ring are catching up to him.
A shot on the temple totally disorients you Anyone that boxed knows this Fair do's to Alvarez he won fair & square Shame that POS Ward wasn't capable though. Its up to Sergey if he wants revenge he should get the chance