Pitcher
In baseball, the pitcher is the player who throws the baseball from the pitcher's mound to the catcher to begin each play, trying to retire a batter who tries to get on base, usually by hitting the ball with their bat or by taking a walk.
A pitcher can also 'pick off' a base runner by throwing the ball to the baseman of the base they stepped off of if they don't make it back in time. This adds one out to the inning, putting the team closer to being able to bat.
Pitcher Media
A. J. Minter, a relief pitcher for the Atlanta Braves pitching in the 9th inning of a game versus the Washington Nationals.
(video) Hiroshima Toyo Carp number 18, Kenta Maeda, pitching a ball
A Navy pitcher releases the baseball from the pitcher's mound.
Major League Baseball player Noah Syndergaard pitching for the New York Mets in 2015
Aaron Fultz and Rafael Betancourt of the Cleveland Indians warming up in the Bullpen.