<P> Extra innings is the extension of a baseball or softball game in order to break a tie . </P> <P> Ordinarily, a baseball game consists of nine innings (in softball and high school baseball games there are typically seven innings; in Little League, six), each of which is divided into halves: the visiting team bats first, after which the home team takes its turn at bat . However, if the score remains tied at the end of the regulation number of complete innings, the rules provide that "play shall continue until (1) the visiting team has scored more total runs than the home team at the end of a completed inning; or (2) the home team scores the winning run in an uncompleted inning ." </P> <P> The rules of the game, including the batting order, availability of substitute players and pitchers, etc., remain intact in extra innings . Managers must display caution to avoid using all their substitute players, in case the game reaches extensive extra innings . The rules call for a forfeiture if a team is unable to field a full team of nine players . </P>

How many innings are there in the world series