A defenseman is a player in ice hockey whose primary role is to prevent the opposing team from scoring. They typically play near their own goal and work to block shots, intercept passes, and check opposing players. Defensemen are crucial for maintaining team structure and supporting the goaltender, often using their body and stick to disrupt offensive plays. Defensemen can be categorized into two types: stay-at-home defensemen, who focus on defensive duties, and offensive defensemen, who contribute to the attack by joining offensive plays and taking shots on goal. Effective defensemen possess strong skating skills, physicality, and a good understanding of the game, making them vital to a team's success.