Alexander Zverev says world No 1 Novak Djokovic is the US Open title favourite, despite the German adding the Western & Southern Open title to his Olympic gold medal on Sunday.
Zverev wins Cincy title but declares Djokovic US Open favourite
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Alexander Zverev says world No 1 Novak Djokovic is the US Open title favourite, despite the German adding the Western & Southern Open title to his Olympic gold medal on Sunday.