Non-football injury and illness
Non-football injury and non-football illness (NFI) are roster designations used in the National Football League (NFL) for players who are unable to practice as a result of conditions unrelated to football, or injuries that did not occur during NFL games or practices. They are similar to the physically unable to perform and injured reserve lists.
Players on the reserve/non-football injury or reserve/non-football illness lists are ineligible to practice or play in games for the first six weeks of the regular season. After six weeks, a player can begin practicing with their team but cannot be moved to the active roster until after the team has played its first eight games of the season. When a player starts practicing, a three-week window begins in which the player can be moved to the active roster. If a player does not get activated after the three-week window ends, they must remain on the reserve/NFI list for the rest of the season. Only up to two players from the NFI lists are eligible to return to the active roster for each NFL team. NFL teams are not required to pay base salaries to players placed on the reserve/non-football injury or reserve/non-football illness lists.