ONE TIME $47 OFFER: Do you want to dramatically improve your flexibility so that you can perform the techniques that John asks you to do in order to build that rock solid serve foundation. Get Flexibility For Tennis it's powerful lower and upper body routines (level 1 and 2) on court pre match warmup, and 4 FREE Bonuses: “ Open Your Hips” , Trigger Point Release” , “ Super 7,” and “ Fix Your Feet” . This is a one time offer only on this page.