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 Colombia Primera A. The Primera A is a Colombian professional league for association football clubs. Twenty clubs play in the league. The system has a promotion and relegation with the Primera B.