Summary Purpose The purpose of the study was to examine the effects of a specific football concurrent strength and endurance training on maximal oxygen uptake (VO2max), running economy, running speed, maximal strength and vertical jump in young football players. Materials and methods Ten young players attended a concurrent strength and endurance training program for 8 weeks. Physical performance and physiological variables were recorded before and after training in order to determine the effects of the specific combined training. Results Concurrent specific football strength and endurance training improved physical qualities of young footballers. We found a significant improvement in VO2max by 4.9%, an increase of maximum aerobic velocity by 7.3%, an improvement in running economy by 5.7%, an improvement in vertical jumps: 15.6% in squat-jump and 13% in counter-movement jump, an increase of the maximal force in half-squat 60% in leg-extension 40% and in leg-curl 49% as well as an improvement in 5m and 30m sprint performance by 5.5% and 2% respectively. Specific strength training combined to endurance training with ball allows for improvement of physical qualities. Conclusion Knowing the importance of technical and tactical work in football, endurance training with ball associated to a specific football strength training avoiding interference can present a real alternative to standard training.