The Olympic Charter requires an athlete to wait three years after last competing for one country before switching to another.

The neighbourhood association argues that the stadium is not properly sound-proofed and its powerful loudspeakers do not comply with noise regulations.

Napoli could well begin Sunday's match nine points behind Inter who will look to shake off their sobering 3-1 defeat against Premier League leaders Arsenal with the simpler task of taking on Pisa.

But it was far from a vintage performance, with a bumper 41 unforced errors and the match ending with angry words at the net.

Nature-lover Novak Djokovic strolled into the Australian Open third round on Thursday as an erratic Madison Keys did enough to keep her title defence on track and Iga Swiatek also triumphed.