We have discussed the impact of concussions on here in the past and Fiedorowicz's career may now become a victim of them. He's had four in the last two season and cannot currently pass a team physical. There have been a slew of guys the last 2-3 years that have left the league willingly or unwillingly due to concussions. I found Chris Borland's retirement interesting as he had not shown any signs of concussion issues and retired after just one season after being drafted in the 3rd round.
http://www.espn.com/nfl/story/_/id/...ton-texans-cut-short-due-repeated-concussions
http://www.espn.com/nfl/story/_/id/...ton-texans-cut-short-due-repeated-concussions
