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The change of wrist action can be seen by a skilled batsman and the change of spin allowed for when playing a shot at the ball.

Less skilled batsmen, or ones who have lost their concentration, can be deceived completely, expecting the ball to move one direction off the pitch, only for it to move the other direction.

If the batsman is expecting a leg break, he will play outside the line of the ball after it spins.

This means the ball can either strike the pads for a potential LBW appeal, or may fly between the bat and the pads and hit the wicket.