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Free substitution or rolling substitution is a rule in some sports that allows players to enter and leave the game for other players many times during the course of a game, generally during a time-out or other break in live play; and for coaches to bring in and take out players an unlimited number of times.
The assistant referee indicating a substitution Fourth official notifying the referee of the details of the substitution. Substitutions are governed under Law 3 of the Laws of the Game in the (3) Substitution Procedure section. [21] A player can only be substituted during a stoppage in play and with the permission of the referee. The player to ...
Substitution (law), the replacement of a judge; Substitution (sport), where a sports team is able to change one player for another during a match; Substitution therapy or opiate replacement therapy; Import substitution industrialization, a trade and economic policy; Penal substitution, a theory of the atonement within Christian theology
Free substitution — apparently intended to help lesser players by allowing longer rest breaks — was implemented in a rule change made April 7, 1943, "for the duration" of the war effort. [7] This was paired with a one-year rule change made in August reducing the size of wartime NFL rosters from 33 players to 28, in an effort to reduce the ...
Sports medicine is a branch of medicine that deals with physical fitness and the treatment and prevention of injuries related to sports and exercise. Although most sports teams have employed team physicians for many years, it is only since the late 20th century that sports medicine emerged as a distinct field of health care.
The change would be sudden. The January 1953 convention of the NCAA's rules committee, acting at the behest of a resolution drafted by the NCAA Council to the gathering, [4] voted to eliminate free substitution and thus the two-platoon system from the college game, effective with the forthcoming 1953 season. [5]
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