Who is Husain Abdullah? Chief's players penalized for end-zone prayer - 6abc Philadelphia
NFL refs defend penalty on Husain Abdullah (but not because of the prayer)
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Husain Abdullah, Chiefs safety, retires after fifth concussion - Newsday
A 30-year-old Chiefs player retires over concussion concerns - The Washington Post
Husain Abdullah Stats, News and Video - FS
Chiefs' Husain Abdullah retires after sustaining five concussions - Sports Illustrated
NFL says Husain Abdullah of Kansas City Chiefs shouldn't have been penalized for praying in celebration - ESPN
Kansas City Chiefs Player Was Penalized for Praying and His Agent Wasn't Happy
Husain Abdullah Announces Retirement
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