India, Oct. 25 -- The NFL has alerted all players about the gambling scandal that hit the NBA this week. Football stars, across the 32 teams, have been warned about illegal sports betting via a memo. This comes as the FBI revealed two indictments that allege illegal sports betting and gambling, and have led to the arrest of 31 people in total.

On Friday, the NFL sent a memo urging players and personnel to adhere to the league's gambling policy.

"NFL players must not: (1) Place any bet on NFL Football. (2) Throw or fix any NFL game or event of otherwise manipulate or attempt to manipulate any play or other aspect of an NFL game. (3) Share confidential, non-public information regarding any NFL game, player, or event with any third-party,"...