I was shocked, I just couldn't believe it

," said Rey Mysterio.

I go back a long way with Kurt, and this has really affected me. I hope he can get his issues straightened out. We all have issues with this lifestyle because it's not easy. I hope he keeps plugging away because I'd love to see him in the ring again someday.

Paul Heyman has known Kurt for yearsand says:

This is the best thing for both parties. Kurt has spent his entire life driven to be the best at what he does. Kurt's body, however, could no longer preform to the level that he envisioned for himself. (Kurt) was prepared to drive himself into an early grave simply to live with himself striving to be No. 1. This is a recipe for catastrophe, and taking time off to get his mind and body in sync is the only way to deal with these issues.

Batista says:

I know Kurt is passionate about wrestling, so for this to happen, something must be going on. I am worried about him; I hope he's ok.