Often, substitutions are made by a coach, designed to deliberately increase the team's chances of losing (such as having key players sit out, often using minimal or phantom injuries as an excuse), rather than ordering the players who are actually on the field to intentionally underperform, are cited as the main factor in cases where this has been alleged. In contrast, losing for future advantage is internal to the team and very difficult to prove. These contacts and transfers can sometimes be discovered, and lead to prosecution by the law or the sports league(s). Match fixing, when motivated by gambling, requires contacts (and normally money transfers) between gamblers, players, team officials, and/or referees. A player might also play poorly to rig a handicap system. Competitors may also intentionally perform poorly to gain a future advantage, such as a better draft pick or to face an easier opponent in a later round of competition. There are many reasons why match fixing might take place, including receiving bribes from bookmakers or sports bettors, and blackmail.
In organized sports, match fixing (also known as game fixing, race fixing, or more generally sports fixing) is the act of playing or officiating a contest with the intention of achieving a pre-determined result, violating the rules of the game and often the law. This article may need to be rewritten to comply with Wikipedia's quality standards.