S9: Red v2, Orange, Green and Yellow ebooks Bundle
Get e-book copies of all four books in the SYSTEM-9 series in one bundle!
Do you want tennis coaching information that is developmentally appropriate and purposeful, yet simplistic and fun?
This is an electronic version of all of the SYSTEM-9: ROGY books. If you require a hard copies please search Amazon. Note that the NEW for 2021 version of Red Ball is included in this bundle!
Andy Dowsett has been coaching juniors for three decades, has educated coaches and taught 1000s of children over this time. SYSTEM-9 is a tried and tested method that has been showcased all over the world to coaches and parents with huge success.
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