Law 3: The Players-Temporary Modification Each squad will be allowed a maximum of five replacements. To minimize disturbance to the game, each side will have a maximum of three substitute chances during the game; substitutions may also be performed at half-time. If a player is replaced by a member of his own team, he cannot subsequently be replaced by an opponent's player. There are two ways that a team can replace a player: with another player on the roster or with a substitute. A team can play only five substitutes in a single game (see Law 3), so a club could have as many as 25 players listed on its roster but only use 23 of them during the match. The other two spots are reserved for substitutes. A team can only have three players replaced by substitutes in any one game. This means that after these three opportunities have been used, any further replacements must be made from among the remaining players on the roster. However, if a player is injured and cannot continue, he can be taken off the field and a replacement brought into the game. The original player can then return to action when he has recovered from his injury. In addition to replacing players during a game, clubs can change their lineup before a match starts. If a player does not appear in the starting XI sheet, he can be replaced by a substitute player.