Cancel call: At times even umpires can get their decisions wrong. If they wish to alter a decision, they can cancel the call by touching each shoulder with the opposite hand.
More recently, with the introduction of the umpire Decision Review System (DRS) in internationals, this signal is made when the on-field umpire's decision has been reversed on the advice of the third umpire.
After making this signal, the on-field umpire would then either
raise his finger
to signal that the batsman is out, or make the "safe" signal - crossing his arms below the waist, similar to
the "dead ball" signal
- to indicate the batsman can remain.
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