Reigning Olympic champion Alexander Zverev has produced a heroic display to take Germany to United Cup triumph after a gripping win over Poland in the final in Sydney.
Backing up after a near-6am bedtime on Sunday morning, Zverev overcame a one-set deficit, two match points and a cramping body to defeat world No.9 Hubert Hurkacz 6-7 (3-7) 7-6 (8-6) 6-4 in a three-hour thriller to level the tie one-all.
