Australian Open: Zverev happy with response in opening win

A relieved world number three Alexander Zverev said he was encouraged by the way he responded from a set down on Sunday to reach the Australian Open second round. The German, who lost the final in three sets to Jannik Sinner last year, ground past 41st-ranked Canadian Gabriel Diallo 6-7 (1/7), 6-1, 6-4, 6-2 on