A total of 55 teams from all over the country will ply their trade in the AIFF Under-16 Youth League which is slated to kick off tomorrow in Kolkata and Shillong simultaneously. On the first day tomorrow, Royal Wahingdoh FC will face Rangdajied United FC at the Mawlai Ground in the opener, while Mohammedan Sporting FC will lock their horns with United Sporting Club at the Mohammedan Sporting Ground. The league, which commenced last season as the Under-15 Youth League, has been refurbished as the Under-16 Youth League keeping an eye on the forthcoming FIFA Under-17 World Cup India 2017. In the round robin stage, the teams from every zone will play on a home-away basis among themselves. Sixteen teams will qualify to the National Final Round. Those sixteen teams will be divided into four groups and the group champions will qualify for the semi-finals. It will be followed by the final to decide the Under-16 Youth League 2016-17 champions.