A "bench warmer" in team sports refers to a player who spends the majority of a game on the sidelines, not actively participating in gameplay. While they may contribute to the team's dynamics through support and morale boosting, they usually do not play significant minutes during matches. Bench warmers may also serve strategic roles, stepping in to relieve tired teammates or providing specific skills when needed. Though they may not receive as much attention or playtime, their presence can be essential in maintaining the team’s overall energy and cohesion.