Melbourne: Alexander Zverev vowed to donate his prize money to bushfire relief if he picks up the Australian Open's Aus$4.12 million ($2.83 million) winner's cheque after he swept into the second round Tuesday.

The German seventh seed had a miserable build-up to the opening Grand Slam of the year, crashing spectacularly in all three of his singles matches at the ATP Cup teams event, looking lost on court. But he has regained some swagger after a week out of the spotlight and eased past the 77th-ranked Italian Marco Cecchinato 6-4, 7-6 (7/4), 6-3 on Margaret Court Arena. Zverev played in the 'Rally for Relief' fundraiser ahead of the opening Major of the year, and said he had been touched by the disaster that has devastated huge swathes of the country.