24-year-old NFL player retires over head trauma fears
 

San Francisco 49ers linebacker Chris Borland retired from the NFL after only one season due to concerns over the potential long-term effects of head trauma.http://feeds.feedburner.com/~ff/rss/...?d=yIl2AUoC8zA</img> http://feeds.feedburner.com/~ff/rss/...?d=7Q72WNTAKBA</img> http://feeds.feedburner.com/~ff/rss/...PY:V_sGLiPBpWU</img> http://feeds.feedburner.com/~ff/rss/...?d=qj6IDK7rITs</img> http://feeds.feedburner.com/~ff/rss/...PY:gIN9vFwOqvQ</img>


More...