Adam Schefter Adam Schefter SEE MORE >

NFL investigating why Mario Williams, who landed $50 million in guaranteed money, publicly has complained about his wrist as recently as this week, yet still is not on Buffalo’s injury report. The Bills said Williams has not missed any practice reps and there never was a doubt he would play in each game. Yet the NFL’s injury report policy reads as follows: “All players with significant or noteworthy injuries must be listed on the report, even if the player takes all the reps in practice, and even if the team is certain that he will play in the upcoming game. This is especially true of key players and those players whose injuries have been covered extensively by the media. … This policy is of paramount importance in maintaining the integrity of the NFL.”

If you've ever wondered how I go about bringing you Insider information, listen…