Ultimate Fighter Season 18 winner, and Team Alpha Male fighter Chris Holdsworth hasn’t seen the inside of the Octagon since May of 2014.

The undefeated prospect, has been out nearly a year, and has no timetable on a return, due to a battle with post-concussion syndrome.

MMAFighting.com has it:

“I cut all that weight. I fight, get hit in the head. Then I started eating bad after the fight. Everything starts going out of wack.”

“It’s hard to take time off when all you know is go, go. That’s my lifestyle. I train every day and I train hard. It’s just frustrating. When you get something taken away from you that you love doing so much — it’s your lifestyle — it’s hard on us. It’s really depressing and frustrating. I definitely think people rush back from injuries and rush back from head trauma in general. These things take a lot longer than people think and everyone is like, ‘When are we gonna see you back?’ It’s like, man — when I’m healthy to fight. My health is more important than anything else. I think I rushed back into things from the finale. I should have took some more time off. I just didn’t know any better. I was feeling good. I felt 100 percent, but realistically I still had trauma. I still needed to heal up. As I’m getting older, I’m starting to learn that it’s better to train smarter than harder. We don’t get paid in the gym; we get paid to fight. You’ve gotta conserve your body and most importantly conserve your brain.”