Watch: Djokovic suffers shock US Open defeat by Popyrin
Watch highlights as defending champion Novak Djokovic is knocked out of the US Open after a 6-4 6-4 2-6 6-4 loss to Alexei Popyrin in the third round.
Watch highlights as defending champion Novak Djokovic is knocked out of the US Open after a 6-4 6-4 2-6 6-4 loss to Alexei Popyrin in the third round.
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