This chapter explores the role of religion in sport injury psychology and proposes the Religious-Psychological Adaptation to Sports Injury (RPASI) model, examining the potential influence of religious factors on injury occurrence, psychological recovery, and return-to-sport processes. Evidence suggests that religious beliefs affect athletes’ cognitive, emotional, and behavioral responses through religious coping strategies, religious behaviors, religious ethical values, individual religious practices, and religious community involvement, thereby potentially reducing injury risk, facilitating psychological recovery, and enhancing readiness to return to sport. Furthermore, religion helps athletes develop resilience, positive emotions, and a sense of self-worth following injury, promoting perceived stress-related growth. The practical implications of this chapter include providing a theoretical framework for coaches, sport psychologists, and healthcare professionals to support the psychological adaptation of religious athletes after injury and to guide the development of religion-informed interventions to improve rehabilitation outcomes.