The NFL Players Association opposes commissioner Roger Goodell's call for players to tell their teams' medical staffs if they think a teammate shows symptoms of a concussion.
NFLPA assistant executive director George Atallah tells The Associated Press on Friday that Goodell's suggestion is not an adequate solution.
Atallah says that instead of wanting players ``to police each other,'' the league should make sure doctors keep a closer eye on players.
During interviews of 160 NFL players conducted by The Associated Press from Nov. 2-15, 30 replied they have hidden or played down the effects of a concussion. Half said they've had a concussion playing football.
Goodell said players should observe teammates and report if there are signs of a head injury.