Bills' Tarpley, 23, retires due to concussions
Bills' A.J. Tarpley To Retire
Husain Abdullah of the Kansas City Chiefs penalised for end zone prayer after touchdown against New England
Eugene Monroe - Wikipedia
A 30-year-old Chiefs player retires over concussion concerns - The Washington Post
Husain Abdullah, Chiefs safety, retires after fifth concussion - Newsday
A.J. Tarpley retires from NFL at 23, Bills linebacker cites health concerns after fourth concussion – New York Daily News
Ex NFL Kansas City Chiefs' Husain Abdullah quits after suffering FIVE concussions
Former Chiefs, Vikings safety Husain Abdullah announces retirement
Chiefs' Husain Abdullah retires from NFL at 30: 'having a sound mind is vital', Kansas City Chiefs
Former WSU, NFL safety Husain Abdullah decries Donald Trump's refugee ban
Another Kansas City Chiefs player, DE Mike DeVito, retires - ESPN - Kansas City Chiefs Blog- ESPN