This article discusses the development of mental skills training for professional baseball players and coaches. The basic educational model involves providing information, skills practice, and support for the athlete who wants to improve his mental game. The basic philosophy employed is an experiential process that facilitates the athlete’s understanding of mental skills training. Over time, skills are refined and adapted to meet the athlete’s unique needs. The practicing sportpsych consultant must follow a number of operating standards to ensure the trust and respect of both players and management. The most difficult step is getting the commitment from a professional team. This article discusses an approach to making contact, guidelines followed for developing a mental training program for a professional baseball team, and some technical aspects to consider in developing a mental training program. It focuses on the range of services provided to players and coaches in group formats and on an individual basis, both at the major league and minor league levels. Finally, there is a discussion of problems inherent in working with players, coaches, and management and how to cope with them.