The mixed doubles final in Tokyo will be an all-Russian affair after Aslan Karatsev and Elena Vesnina beat Serbian pair Novak Djokovic and Nina Stojanovic in their semi-final on Friday.

Competing under the Russian Olympic Committee (ROC) banner, Karatsev and Vesnina overcame the Serbian duo in straight sets, 7-6 (6-4) 7-5, to progress to the gold medal match.

There, they will meet compatriots Andrey Rublev and Anastasia Pavlyuchenkova, who overcame Australian duo John Peers and Ash Barty in their semi-final earlier on Friday.

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