fut·sal - noun
is an indoor version of football (soccer). Its name is derived from the Portuguese futebol de salao and the Spanish Futbol sala/de salon, which can be translated as ‘indoor football'. It is played between two teams of five players, one of whom is goalkeeper. In addition, each team may have a number of substitutes. Unlike some forms of indoor football, the field is delimited by lines, not nets or boards that players can use to redirect the ball. Futsal is played with a #3 or #4 ball, which is slightly heavier and smaller than the #5 ball used in football.