In the national football league what does practice squad deletion mean?

Answer 1

In the NFL, the teams are allowed to have 53 players on their roster. Of these 53 players, 45 are allowed to dress for a game. The players on the roster that don't dress for a game are considered to be on the 'practice squad'. Should a team decide to cut one of those players on the practice squad, it is called a 'practice squad deletion'. In the same vain, if a team picks up a player and adds him to the practice squad it is called a 'practice squad addition'.