This case study outlines the use of acceptance and commitment therapy with a client struggling with uncomfortable thoughts and emotions concerning his injury, impacting adherence to his rehabilitation plan. The aims were to increase psychological flexibility and decrease cognitive fusion to allow for greater adherence to his rehabilitation plan and support well-being. The client engaged in a series of one-on-one sessions, discussing the triflex within acceptance and commitment therapy through the strategy of “recognize, release, refocus.” The intervention included practice engaging with the present moment, exploring defusion techniques, clarifying values, and committing to subsequent values-driven behaviors. The effectiveness of the intervention was assessed by monitoring psychological flexibility, cognitive fusion, and feedback from the client’s physiotherapists. The trainee sport and exercise psychologist then provided reflections on the case.