Tanking in sports refers to the practice of intentionally fielding non-competitive teams to take advantage of league rules that benefit losing teams. This is a much more common practice in American sports leagues as international sports leagues typically penalize poor performers. International leagues often use what is known as a promotion/relegation system in which the worst teams are relegated and spend the next season in a lower-tiered league. Relegation costs the team revenue and makes it much more difficult to attract top talent, thus making it infeasible to tank. Tanking teams are usually seeking higher picks in the next draft, since league rules generally give the highest draft picks in reverse order to the previous season's worst teams. Tanking may also be referred to as rebuilding