Disclosed are a method and system for replacing a player in a sports game. A player replacement method may include providing a management interface for managing, for each position, characters assigned to a user among characters in a sports game, recognizing a first input of the user for a first character among the characters displayed through the management interface, determining at least one recommendation character to be replaced with the first character selected by the user among the characters displayed through the management interface in response to the recognition of the first input of the user, and displaying the determined recommendation character differently from the remaining characters displayed through the management interface until a second input of the user related to the replacement of the first character is recognized.