If the umpire is informed of a change, players can change the position they are playing at any time when time has been called. In theory, someone playing first base could be moved to be the pitcher.
This can happen if a manager has run out of usable pitchers and must use someone who vaguely remembers how to pitch.
And, if it is willed, that non-pitcher who gets to pitch can be a hero!
Middle Relief Pitcher. A pitcher who goes in around the 5th - 7th inning.
The win goes to the relief pitcher (assuming there was more than one relief pitcher) whom the official scorer feels was most instrumental in the victory. That relief pitcher must pitch at least 1 full inning, or pitch a crucial out if he pitches less than one inning.
It is an abberviation for relief pitcher
Will Smith is a relief pitcher for the Milwaukee Brewers.
In baseball, a save is determined when a relief pitcher enters the game with their team in the lead by three runs or less, and successfully finishes the game without giving up the lead. The criteria used to determine if a relief pitcher earns a save include entering the game with the lead, pitching at least one inning, and not giving up the lead to the opposing team.
A.J. Ramos is a relief pitcher for the Miami Marlins.
Aaron Barrett is a relief pitcher for the Washington Nationals.
Aaron Poreda is a relief pitcher for the Texas Rangers.
Adam Ottavino is a relief pitcher for the Colorado Rockies.
Addison Reed is a relief pitcher for the Arizona Diamondbacks.
Al Alburquerque is a relief pitcher for the Detroit Tigers.
Alex Wood is a relief pitcher for the Atlanta Braves.