Djokovic showed few signs of the virus which has hampered him in recent weeks and secured a straight-sets 6-0, 6-1, 6-4 victory in just one hour and 24 minutes, reaching the tournament’s third round for the ninth successive year.
“In the opening two sets everything went as I wished and planned,” said Djokovic. “He [Kuznetsov] is one of the up and coming stars.”
Defending champion Stan Wawrinka, meanwhile, had to graft to make round three, sealing his place by defeating big-hitting Romanian Marius Copil 7-6, 7-6, 6-3.
American top seed Serena Williams stormed through with a convincing second-set performance following a tight first, ultimately posting a 7-5, 6-0 success against Russia’s Vera Zvonareva.
“She started out really well, she was really aggressive and I was a little too passive,” said Williams. “Once I got down I thought ‘Serena, you’ve done so well here you’ve got nothing to lose, just have fun and enjoy yourself’, then I started to play a lot better.”
Two-time champion Victoria Azarenka consigned an injury-blighted season to the pages of history after dispatching Denmark’s Caroline Wozniacki 6-4, 6-2 in a battle of former No1s.
Azarenka is unseeded at a grand slam for the first time since 2007 after her tribulations last year, slipping to a world ranking of No44 in the process, but quashed Wozniacki’s latest attempt to claim a major title.