High Quality Content by WIKIPEDIA articles! In the sport of cricket, bowling is the action of propelling the ball toward the wicket defended by a batsman. A player skilled at bowling is called a bowler; a bowler who is also a competent batsman is known as an all-rounder. Bowling the ball is distinguished from simply throwing the ball by a strictly specified biomechanical definition which restricts the angle of extension of the elbow. A single act of bowling the ball towards the batsman is called a ball or a delivery. Bowlers bowl deliveries in sets of six, called an over. Once a bowler has bowled their over, one of their team mates will bowl an over from the other end of the pitch. The Laws of Cricket govern how a ball must be bowled. If a ball is bowled illegally, an umpire will rule it a no ball. If a ball is bowled too wide of the striker for the batsman to be able to play at it with a proper cricket shot, the bowler`s end umpire will rule it a wide.