Chris Borland retires from football due to concerns over head trauma; Do others share his concern?

Name: Chris Borland retires from football due to concerns over head trauma; Do others share his concern?
Uploaded: 2020-07-16T14:07:13+00:00
Duration: 2 min 18 s
Description: Chris Borland retires from football due to concerns over head trauma; Do others share his concern?