Man-to-man marking is a defensive strategy in team sports where each defensive player is assigned to mark a specific opponent. Synonyms for man-to-man marking include player-to-player marking, individual marking, personal marking, one-on-one marking, and marker defense. In this tactic, defenders must closely shadow their assigned player to prevent them from receiving a pass or making a play. This type of marking can be effective in limiting the impact of star players on the opposition team. However, it can also lead to vulnerabilities if a player is beaten one-on-one, leaving open spaces for the rest of the opposition to exploit.