The umpire has the power, and personal discretion to eject a player, manager or coach. Umpires in Major League Baseball are appointed by The League President. The umpires are responsible for the conduct of the game being aligned with the current MLB Rulebook. They are tasked with ensuring the game is played at to those standards and keeping order on the baseball field.
Rule Eight in the MLB Official Rulebook is written solely about umpires' power. According to Rule eight, each umpire is a representative of the league and of professional baseball. Under Rule Eight, umpires are given the power and are required to uphold every rule listed in the Official Baseball Rulebook. When the line has been crossed and someone has interfered with the umpire administering these rules, that is an automatic ejection.
Rule Eight also gives each umpire the power to rule on any point not specifically covered in these rules. Umpires are not restricted to ruling on player, coach or manager. In section e of Rule Eight, it states that an umpire has the authorization from MLB to eject groundskeepers, ushers, photographers, media personnel who are not supposed to be on the field or are interfering with the game.
There are quite a few violations that will result in the umpire ejecting a player, coach or manager from the game. Once ejected, the player, coach, or manager has two options:
After being ejected, the individual may be subjected to additional penalties that will be determined by his League President.
There are nine ways to get ejected, four are based in Rule Six: improper play, illegal action, and misconduct. Those rules clearly state that it is forbidden for any player, manager, coach, trainer or any other team staff, whether it be from the bench or on the field to:
Perhaps most importantly, no one should make intentional contact with the umpire in any way. Any contact with the umpire would not only result in an immediate ejection but most likely a suspension as well.
The next three other ways to be ejected fall under violations to Rule Eight: it is forbidden for the umpire, player, manager, coach, trainer or any other team staff, whether it be from the bench or on the field to:
The final two ways to receive an ejection have to do with player's action: