I assume the players must have some sports science backing on this.
Without that background, the thing that would seem to reduce injury - of certain types at least - is reducing/removing interchange. The game can't be played at the same pace if more of the players are on the field more of the time.
Without that background, the thing that would seem to reduce injury - of certain types at least - is reducing/removing interchange. The game can't be played at the same pace if more of the players are on the field more of the time.