Alexander Zverev saved two match points in a gruelling three-set win over Hubert Hurkacz to help Germany upset top seeds Poland and clinch a maiden United Cup title in Sydney on Sunday.

Daniil Medvedev on Sunday admitted he would rather be playing at the mixed teams United Cup than the Adelaide International, but the Russian intends to make the most of the season-opening event.

Nick Kyrgios said he withdrew from the inaugural edition of the United Cup to be in peak condition for next month's Australian Open, adding that he did not expect everyone to understand the reasoning behind his decision.