His right arm on the elbow area was already injured, you could see it looked like it was burnt and badly grazed. The commentators said it happened while he was in the garden the other day, maybe he was having a BBQ with Dustin Nichols and burnt his arm on the Foreman grill :think Anyway he broken his arm and tore his bicep now too, he's gonna be out for months and months, he'll avoid Povetkin again lol.
Maybe he faked the injury to avoid Povetkin lol, it seemed a bit blatant that elbow area to begin with.