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In baseball, a breaking ball is a pitch that does not travel straight as it approaches the batter; it will have sideways or downward motion on it, sometimes both (see slider). A breaking ball is not a specific pitch by that name, but is any pitch that "breaks", such as a curveball, slider, or cutter—also known as a cut fastball. A pitcher who primarily uses breaking ball pitches is often referred to as a junkballer. A breaking ball is more difficult than straight pitches for a catcher to receive as breaking pitches sometimes hit the ground (whether intentionally, or not) before making it to the plate. A curveball does not curve side to side; it drops as it reaches the strike zone. And blocking a breaking ball requires thought and preparation by the catcher. The pitcher then, must have confidence in the catcher, and the catcher in himself, to block any ball in the dirt; if there are runners on base, they will likely advance if the ball gets away from the catcher. (Whether the pitcher is right-handed or left-handed will dictate which direction the catcher must turn his body to adjust for the spin of an upcoming breaking ball. This necessary movement must not telegraph the next pitch to the batter, so an experienced catcher must fake or mask his intentions of preparing for the pitch.) If a breaking ball fails to break, it is called a "hanging" breaking ball, or specifically, a "hanging" curve. The "hanger" presents a high, slow pitch that is easy for the batter to see, and often results in an extra-base hit or a home run. Don Mattingly wrote in ''Don Mattingly's Hitting Is Simple: The ABC's of Batting .300'' that "hitting a breaking ball is one of the toughest things you'll have to learn" due to the ball's very brief window in the strike zone. ==See also== * Swing bowling, a similar concept in cricket 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「breaking ball」の詳細全文を読む スポンサード リンク
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