Blood replacement

In both rugby union and rugby league, a blood replacement (also referred to as a blood substitution or blood bin) is a special kind of substitution which can be used in the case of a player having to leave the field of play temporarily to have a wound attended to. Both rugby union and rugby league are physically demanding games, so musculoskeletal injuries are common, as well as injuries to the head and neck, and fractures. During the IRB 2011 Rugby World Cup, a study was conducted to determine the frequency and nature of the injuries sustained. It confirmed that rugby, like many other contact sports, has a high incidence of injury.