Wow. Just like that… Brock Lesnar fought, he lost, he retired. Seems like a big giant teddy bear in his announcement too. I wanted to give him a big hug. Good for him for keeping his word to his wife and family…after a battle with diverticulitis, he put his future ahead of his fighting. Nice win by Alistair Overeem. One round. Like a boss in his UFC debut. Dude is a physical specimen.