It's probably rust, but he needs to have desire and commitment to get back to where he was, let alone make it further.

I think he's only acually been able to train the last couple of months properly due to the shoulder, he has to get confidence back into it to throw it more often. It was a shitty performance against Manfredo, but he got through it, if he can show steady improvement while staying busy he may be able to get back in contention.