NEW YORK — The NFL reminded its players Friday that they are prohibited from taking part in any form of illegal gambling and betting on league games.

In a memo obtained by The Associated Press, the league asked all 32 teams Friday to reiterate key aspects of its gambling policy and make the document readily available to players.

“We all have a responsibility to protect the integrity of the Shield by ensuring that our game is played fairly, honestly and to the best of a player’s ability,” the NFL management council wrote in the memo. “NFL players must also take appropriate steps to safeguard the game against gambling-related risks that may undermine the confidence and trust of the fans.”

The reminder followed an FBI investigation into illicit gambling activities resulted in the arrests o

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