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Tennis: Triangle of Death Drill with Bethanie Mattek-Sands
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3,552 Lượt xem·
03/31/17
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体育
Olympic gold medalist Bethanie Mattek-Sands takes you through some of her favorite on-court drills for both singles and doubles. This drill - called the Triangle of Death - is great for three players looking to improve their groundstrokes and volleys.
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