Edgar GiffenigJul 13, 2014The Laws of the Battle - Second Serve - Serve Mostly to the Opponent's Weakness
Edgar GiffenigJun 17, 2014Improve the Most Important Skills in Tennis - Tracking the Ball and Getting in Position
Edgar GiffenigJun 9, 2014Helping Advanced Servers Incorporate the Desired Shoulder Rotation into their Serves
Edgar GiffenigMay 17, 2014Thoughts on the ITF’s Worldwide Campaign to Introduce Tennis to Children by Resizing Courts and Equi
Edgar GiffenigMay 10, 2014The Goal of Technical Training in Tennis Should be to Develop Stroke Flexibility
Edgar GiffenigMay 6, 2014Tennis Tip - Serve - Understanding the Difference Between a Flat, Slice and Kick Serve
