با سلام
پیرو گفته های محمد راجع به تغییر Grip هنگام سرویس زدن Nadal , به گفته های Nick Bollettieri دقت کنید:
He’s changed from an eastern backhand grip on his serve to more of a continental grip (similar to Becker) and this has allowed him to hit a much flatter serve. Would I recommend this to anyone? No! But, Nadal has the ability to do this and it’s working for him.
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