Sabrina Perel demands NFL remove injury and manipulation contracts

NFL's Sabrina Perel sends second letter demanding injury and manipulation contracts be removed

The National Football League sent a second formal letter to prediction market operators on Thursday, one week before the 2026 regular season begins, repeating demands it first made in the spring and naming Kalshi and Polymarket as recipients.

Sabrina Perel, the league's Chief Compliance Officer, authored the letter. She wrote that contracts the NFL identified as objectionable months ago continue to be listed on the exchanges. The categories include contracts tied to player injury status, player misconduct, fan safety, officiating decisions, and broadcast events such as celebrity attendance.

Perel also flagged specific single-outcome contracts she described as vulnerable to manipulation by one person: whether a kicker misses a field goal, whether a quarterback's first pass is incomplete, whether a receiver's first target is incomplete, and whether a running back gains fewer than a set number of yards on his first carry.

Her letter stated that listing these contracts creates significant risks for players, coaches, and officials, and threatens the competitive integrity of the games themselves.