Novak Djokovic has challenges in his tennis serve because his elbow drops too low in the trophy position.
Keeping your elbow up on your tennis serve will help you increase the power and control on your tennis serve.

Your tennis serve is all about consistency and not letting the elbow drop will increase it.
Keep this in mind next time your are hitting your tennis serve playing tennis and you will see results.

Tennis videos by Jeff Salzenstein. For more videos and personalized video analysis visit www.jeffsalzensteintennis.com
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