No ball
（重定向自No balls）
In the sport of cricket a No ball is a penalty against the fielding team, usually as a result of an illegal delivery by the bowler. For most cricket games, especially amateur games, the definition of all forms of No ball is from the MCC Laws of Cricket, although youth cricket often has stricter rules on beamers, and international cricket has stricter rules on beamers, but laxer rules on bouncers.