Infielders are the defensive players who stand in the infield, which is the dirt and grass area that contains home plate, the pitcher's mound, and the bases. The infielders are players who stand in the infield and are the basemen, shortstop, pitcher, and catcher.
The infielders include the following players:
The baseman are each assigned a base, either first base, second base, or third base. On a force play, the baseman can catch the ball and tag out a baserunner. The first baseman occupies the area around first base, the second baseman does the same at second base, and the third baseman does the same at third base. They are responsible for fielding and catching baseballs around their designated area, and for putting out runners at their respective base. There are some exceptions to this general rule, however, as they can temporarily cover each other's bases as necessary in the middle of a play.
In baseball, left-handed throwers have an advantage over right-handed fielders because all throws in the infield go to the right side of the field since when standing at the edge of the infield. As a second baseman, it is important to be good at making double plays. In addition, basemen must be aware of all the base runner's positions.
The pitcher is the defensive player who stands on the pitcher's mound and delivers special throws, called pitches, to the batter, who then tries to hit the the ball. For most of the game, he and the batter are at the center of the action. The pitcher throws the ball to the catcher in hopes of striking out a batter. This is called a pitch. The pitcher stands on the pitcher's mound and sometimes leaves the mound to help the first baseman field a ground ball.
The catches catches all pitches thrown by the pitcher and crouches behind home plate in front of the umpire. The catcher is the defensive player who squats in the catcher's box behind home plate. He receives pitches that batters do not hit, and gives the pitcher guidance on what pitch to throw.
The shortstop is similar to the first baseman, second baseman, and third baseman, except he does not have a specific base to cover. He is stationed between second base and third base, and is instrumental in making double plays. The shortstop will help the 2nd baseman in difficult fielding situations. Shortstop is the most difficult position in the infield because of the responsibilities of the position. Shortstops must be great at fielding ground balls, making catches, and throwing to all of the bases especially first base. Derek Jeter is an excellent example of a great shortstop.
Outfielders are the defensive players who stand in the outfield, or the large grassy area that is farthest from home plate. The left fielder, right fielder, and center fielder are known as outfielders because they stand in the outfield. The outfield is made up of left field, right field, and center fielder. These players catch deep balls and must have strong throwing arms to throw to the infielders at base.
The outfielders are called:
The left fielder occupies left field (typically the left one-third segment of the outfield). In baseball, the left fielder is often regarded as the easiest position to play because it's close to all the bases. Also, batters are mostly right-handed, so there isn't much slice on the ball when it lands into left field as opposed to left-handed hitters.
The right fielder occupies right field (the right one-third segment of the outfield). Occasionally, the left fielder and right fielder may cross into each other's general areas if a baseball is hit in between them. In addition, sometimes the shallow outfield is covered by the infielders. As a right fielder, it can be challenging to throw to third base.
The center fielder occupies center field (the center one-third segment of the outfield). Center fielders have lots of ground to cover, so speed and quickness are needed. To play center field, you need a strong throwing arm to get the ball to all of the bases. Center fielders must constantly shift throughout center field to catch shallow and deep hits.
Teams must have a pitcher and catcher who stand on the pitcher's mound and catcher's box respectively. Although not required, it is highly recommended that baseball team follow convention with the player positions. It is interesting to note that as long as a fielder is standing in fair territory, they can position themselves anywhere on the field.