Ummm for those that watch the games, yes Micky has been talking about Z not being 100% and that his back has been bothering him. That means yes, he has been the walking wounded.
Z has had a bad back for 2-3 years now. It is not going to get better on its own. HD's don't work that way. he has to have surgery. Period. Even then doesn't mean it fixes things. Just buys time until you have another then another then another. I know lots of people that have had this issue-spent 30 years in construction. Everyone that has one surgery on HD's has another within 5 years. Heck, look at Bert. How long and how many surgeries has he had? Several. Micky Redmond had his career cut short because of his back.
It actually can get "better" (aka less pain & absorption of disk matter) on it's own if given sufficient nutrients & time to heal. Surgery may/may not help with speeding up the process. Evidence is mixed. The problem for Z is that he has an occupation that isn't going to allow for his nervous system to calm down. Back pain is a ***** in that once you have it, your nervous system is centrally sensitized and it is very hard to keep it under control. Our bodies can be cruel in their effort to protect us. Sometimes it thinks the movement of reaching for the shampoo in the shower is a threat & put's people out of commission for a week. Now think about that with Z, a guy getting hacked, whacked, & pushing his body to the limit. For guys like him & Helm it is going to be rough.