Stress fractures, shoulder injuries, pec problems, knee setbacks, Thanasi Kokkinakis has had his share of injuries over the last decade. The 28-year-old has reminded tennis fans what he's capable of when he's healthy, causing a major upset at the US Open. Kokkinakis dispatched 11th seed Stefanos Tsitsipas and told us he's ready to make up for lost time. Featured: John Millman, former ATP veteran. 

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