Baseball (see also Softball)

Avoiding the biggest mental trap in sports - By Dr. Alan Goldberg.

Baseball and concentration - By Karlene Sugarman.

Baseball umpiring - Gary G. Ford, Ph.D.

Baseball, sports psychology and peak performance

Mental skills and team building - Various articles.

Mental toughness training manual for baseball/softball players - By J. Lefkowits, Ph.D. and D.R. McDuff, M.D.

Teaching the psychology of pitching - Article written by Coach Mike Matulia.     

The psychology of umpiring - Article written by Dave Harris.

The relationship between perceived coaching behaviours and team cohesion among baseball and softball players - Gardner, D. E., Shields, D. L., Bredemeier, B. J. and Bostrom, A. (1996). Sport Psychologist, 10, 367-381(Abstract from Coaching Science Abstracts).