Jim Klein, USPTA Elite Pro, and Director of Tennis at the Doylestown Tennis Club in Doylestown, PA, joins Nick to discuss the ins and out of the strokes of Federer, Nadal and Djokovic.  Jim has been teaching tennis for over 30 years, has a degree in the Science of Tennis Instruction from the Tyler Junior College and was named the Pennsylvania Coach of the Year in 1991.Federer: 0:00-12:47- Prestretch Forehand Mechanics- Forehand Racket Head Speed - Backhand BackswingNadal: 12:48-21:35- Height and Spin off the Forehand Side- Defensive Forehand- Backhand BackswingDjokovic: 21:36-34:50- Backhand Efficiency and Effectiveness- Serve Ups and Downs- Forehand Backswing- Open Stance DefendingAll Three: 34:50-End- Grips used by the Big 3- Going to the Net - Best Shot amongst the Big 3