Assertion: football player | /r/CapableOf | sustain concussion
Facets:
value: in the nfl
type: LOCATION
Source sentences:
text: When a football player sustains a concussion in the NFL, he is required to go through the concussion protocol the league
text: Another study found that 15.8% of football players who sustain a concussion severe enough to cause loss of consciousness return to play the same day.