BetDSI Sportsbook has the best and most updated soccer betting odds, at BetDSI you can find the latest soccer predictions for the upcoming games and read our soccer betting tips and picks to place your online bet. Join BetDSI today and get the latest odds and lines for the Argentina Nacional B. The Nacional B is the second most important category of Argentine football organized by the Argentine Football Association. The three best teams are automatically promoted to Primera División.