Abstract. The present study employed a quasi-experimental design, in which the experimental group ( n = 13) practiced a loving-kindness meditation (LKM) via a single in-person workshop and via an app, whereas the active control group ( n = 20) practiced progressive muscle relaxation (PMR). Both interventions lasted 1 week and were executed in the respective soccer academy. The groups completed a pre- and posttest measuring compassion, fairness, and team cohesion. In contrast to our hypothesis, we did not find an interaction effect. LKM athletes did not demonstrate greater cohesion, fairness, and compassion after the intervention than the PMR athletes. By comparing user engagement and user rating between LKM and PMR, we conclude that LKM is as accepted as PMR by the study cohort. We suggest implementing future LKM interventions with substantial interaction parts and considering specific person-by-context interactions.