The preliminary round was disputed by 16 clubs, while the first stage was disputed by 32 clubs, including the ones qualified from the preliminary stage. The competition was disputed in a
knock-out format. In the preliminary stage and in the first round if the away team won the first leg with an advantage of at least two goals, the second leg was not played and the club automatically qualified to the next round. The following rounds were played over two legs and the
away goals rule was used. ==Competition stages==