Naequan and Stephen Gertsen Training
Coach Stephen Gertsen and Shavain Backhand to Forehand transitionПодробнее
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Multiball trainingПодробнее
Table Tennis England Coach Mentor Programme | Stephen GertsenПодробнее
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girlsTrainingCampПодробнее
2021 - Stephen Gertsen v Paul WhitingПодробнее
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