Foster, who had back surgery on Nov. 13, played in just eight games for the Texans last season.
"Any time an athlete goes through an injury like that -- a back, a neck, even knees or hips, something that puts you out for the entire season -- you kind of re-evaluate your life. You see what's really important. Is getting paralyzed more important than playing with your grand kids when you’re 50, 60 years old. People die on the football field. This is a really brutal sport. Going through an injury like that, being 27 years old, I’m young, still I’m at the prime of my career. Is it worth it to try to come back?"
Foster has been in and out of Texans' training camp practices after injuring his hamstring on July 27.
- Sarah Barshop