Yes. The NFL mandates that teams put out an injury report every week to declare who's hurt and how bad. However, when a player is seriously injured, and that injury will take a long time to heal, the team may put the player on 'injured reserve'. This is a list outside the normal roster limits, but once on the list, a player cannot rejoin the regular roster that season.
The official playing roster of an NFL team is limited to 53 players. The total including the practice squad is eighty players. Injured reserve players are counted against this total but may not play or practice for the current season.
An NFL team has 53 men on its roster not counting injured reserve.
55
The active roster for an NFL team is 53 players not including those on the injured/reserve or the practice squad.
100
The Steelers, like any other NFL team have 53 players on their active roster.
How many players can be on a NBA roster
How many players can be on a NBA roster
A NFL roster has 53 players. A team is also allowed to have a practice squad, a group of developmental players. The practice squad is can have as many as 8 players on it. Therefore, there are a total of 61 spots on an NFL roster. As you can see by the limited numbers of spaces available, there is a lot of competition to achieve a roster spot in the NFL.
http://www.seahawks.com/team/roster
11 for each team. So, 22 at one time if you include both teams.
NFL teams are allowed to have 53 players on their roster.