Alex Karras, Paul Hornung and the NFL's evolving relationship with gambling - Sports Illustrated
NFL suspends five players for violating league's gambling policy, NFL
List: NFL players suspended for violating gambling policies
NFL suspends five players for violating league's gambling rules
Five players suspended for violating NFL gambling policy
NFL suspends three players indefinitely for gambling; Detroit Lions have released two of them
Rams OL Aaron Neary suspended for four games for substance abuse policy - Turf Show Times
NFL revises gambling policy, reinstates Detroit's Jameson Williams and 2 other suspended players - The San Diego Union-Tribune
Should the NFL have suspended Calvin Ridley for gambling? - Los Angeles Times
NFL reinstates two after changes to league gambling policy, News
NFL re-emphasizes gambling policy for players and its six 'key rules' after recent spate of violations