Duck under delivery

This term refers to an unpleasant serving from a bowler. The batsman has to squat after the duck under delivery (sometimes even kneel down) to avoid being hit in the body by the ball.

Duck under delivery: the basic meaning

This technique against batsmen is considered one of the most effective ways to get them out of the game. Often, batsmen do not have time to react to a flying projectile and are mistaken, allowing bowlers to bring points to their team.