Jeff Greenwald, M.A., MFT is a former tennis professional, a psychotherapist specializing in sports psychology, and an associate editor for TennisOne.com. He has written articles for numerous tennis publications, including "Tennis Magazine" and "Inside Tennis", and is the author of "Fearless Tennis: The 5 Mental Keys to Unlocking Your Potential", a double-CD audio program. He is a frequent speaker at tennis clubs. www.mentaledge.net