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In baseball, a submarine is a pitch released near the ground with the shoulders closer to the transverse plane rather the coronal plane. It is not underhanded, contrasting with softball pitch where the shoulders are on the coronal plane and the hips do not rotate. Pitchers using this delivery are rare, it is a skill separate from natural throwing motion that needs training to convert. Typically among submarine pitchers, they uncover its competitive advantage and continue. Many first tried as a last resort when ineffective, or in convalescence with limited arm control.