Zetterberg has a poor back as well.... fire the trainers
I don't think having 2 guys on a roster that have had back issues is a surprise. Back pain is one of the most common problems that people deal with.
I never really understood the hoopla regarding back pain until i myself badly strained my back. It was honestly probably the most physical pain that i've ever experienced. When i was laying down i feared that i wouldn't be able to roll over to get up. I couldn't even look down to see where i was pissing for 3 or 4 days. But by far the worst part was the back spasms. They were occuring out of nowhere and it basically felt like somebody was suddenly stabbing you in the back, causing every part of my body to tense up. I have a pretty decent pain threshold (i rarely take pain medication for anything), but back spasms literally made me scream out loud. It probably looked like i was having mini-seizures.