There are 25 players on a major league roster
Yes, players on an MLB active roster must get at least the Major League minimum salary, whether or not they play.
There were 750 with the 25 man roster and 1200 with the 40 man roster
In major-league baseball there are two rosters the 25 man roster and the 40 man roster. The 25 man roster are the players that are playing for the team and the ones that dress for the games. The 40 man roster are the players that are singed to a major-league contract for that team. They can be called up to replace any player on the 25 man roster at any time.
A baseball roster is a roster that typically consists of active players for a baseball game such as for example in Major League Baseball all 30 teams have a 25-man roster starting from Opening Day of the regular season until and including games on August 31st however starting on September 1st all teams are allowed to call up any players that are not on their 25-man roster but are currently on their 40-man roster, teams will have 40-man rosters as their active roster until the end of the season.
During Spring Training, there is no limit for how many players a Major League Baseball team can have but during the regular season all 30 teams will only have 25 players on their roster unless the 26th man rule is in event for a double header between two games. Starting on September 1st, teams can up players from their Minor League teams so that they can have a total of 40 players on their roster. During the Postseason only 25 players are allowed on a roster.
All players that are on a Major League Baseball's 25 man roster before September 1 hits, this will include players on the team's Disabled Lists. However there are some exceptions to this rule, a player from one of its Minor League organizations will be allowed to take a Playoff spot on the roster in place of an injured player as long as they were part of the organization prior to September 1.
Each Major League team can have 25 players on their active roster. This was true in 1995. There was a brief time in the 80s when Major League teams all put just 24 men on their roster as part of their labor dispute with the players. In regular season games in September and October teams can carry 40 players on their active roster. Other than those exceptions, the active roster has been set at 25 for decades.
The 2009 New York Yankees had 37 different players on their Major League roster.
A baseball roster going from 35 to 25 will only happen during Spring Training. A Major League Baseball team can have as many players as it wants during Spring Training games including all members of its 40 man roster however as the year progresses closer to Opening Day, the team has to reduce the team to 25 players.
There are nine players in the lineup at any one time on a baseball team. In Major League baseball, each team's active roster is limited to 25 players, although, a team's roster can be up to 40 players including players on the Disabled List or Suspended List. The active rosted is then expanded on September 1 of the season, up to the maximum limit of 40.
A Non-Roster invitee is a player that a team in Major League Baseball that has signed to a minor league deal but is not part of their 40-man roster and therefore does not have to be optioned down to the Minor Leagues if they will be demoted down to 1 of the Major League club's Minor League clubs. Non-roster invitees are typically players that are recovering from injuries or had a bad year the previous season and the team that signs them are typically willing to give them a chance in hopes of catching lightning in a bottle with them.