Decision Review System (DRS) is a technology based system, frequently used in sports (predominantly in cricket). It refers to the process to examine the decision given by the on-field umpire. The system enables to take the decision whether a batsman is out or not. Initially, ICC made it mandatory to be used in all matches, but later on, it was made optional. If both the team shows positive response with the use of DRS in the match, they may use it.
DRS consist of three major components:-
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