He is Mike Perez, ... he changed a lot since becomming a heavyweight ... Don't know why is he willing to get hits to the head like he did ...
That doesn't look like Perez to me either. The opponent is either a cruiser or a very small HW so not the biggest of tests for whoever the black guy is in that vid (it's not Perez).
What an annoying crowd, people constantly laughing and some ****ing idiot who keeps on standing up and talking to somebody behind him.
It is Perez, and he was sparring some of the Russian junior team from when they were in Ireland for a training camp.