Of course theres a gamble, he had a career defining injury and likely has zero confidence, which was a huge part of his game as his technique was, in reality, pretty poor. But he's a striker who scored nearly 30 goals up here, has moved for a combined £1.8m and has a Scotland cap, all within the last three years. He's still got reputation to spare, and I'd be surprised if anyone other than, Celtic wouldn't consider signing him.