This video is a free insight from the complete video “Tennis Technique Training: Service”, now available in our store:
https://www.tennistraining-online.com/product/tennis-techniktraining-modul-aufschlag/
This exercise is the most commonly done incorrectly in serve training. Do not do this exercise, otherwise you will always serve badly. In this video, Michael Kreuzer, former chief instructor of the Hessian Tennis Association and DTB A-Trainer, why this drill is so bad for you.
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