Wimbledon, Jannik Sinner and Grigor Dimitrov
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The 34-year-old Bulgarian won the first two sets 6-3, 7-5 and was tied with Sinner 2-2 in the third when he went down with the injury.
Watch match point as world number one Jannik Sinner reaches the semi-finals of Wimbledon with a 7-6 (7-2) 6-4 6-4 win over American 10th seed Ben Shelton.