The fifth in curling is an extra curler on the team that will play if someone else is sick or injured. During competitive play, the fifth has a greater responsibility in addition to serving as a substitute. In some bonspiels, teams that make it to the playoffs can select the stones from any sheet that they want to use for the game, regardless of what sheet the team plays on. After teams complete their games, the fifth goes on to the ice and throws the stones from that sheet. This helps the teams determine which stones they will use in such critical matches.