This study was aimed to investigate why team sport coaches use group training as a part in their build-up training. Issues covered in this study are: "What motives have coaches in team sports that use group exercise as part of the build-up training?" and "What are the positive and negative aspects experienced trainers of using group exercise as part of build-up training in team sports?". It was a qualitative study, seven interviews were made with team sport coaches that has used group training as a type of exercise in their built-up training in collaboration with Friskvårdskompaniet. The results showed that the reasons why group exercise were used was different from coach to coach for example one motive was to increase the players physically ability. It appeared that the trainers were generally positive to use group training as a type of exercise in their build up training and it contributed with greater cohesion, strength, and reduced injury problems of the players.