Updated

Novak Djokovic showed little sign of fatigue as he defeated Andreas Seppi 6-3, 6-4 on Monday to give Serbia a 2-0 lead over Italy at the Hopman Cup.

Djokovic arrived in Perth less than 24 hours before he stepped on court, but still had a straight-sets win to add to Ana Ivanovic's earlier 6-0, 6-4 victory over Francesca Schiavone, giving Serbia a win in the group-stage clash of the mixed teams event.

The two teams are in Group A, where Australia won the opening contest over Germany on Saturday when Andrea Petkovic had to retire from the singles and forfeit the mixed after suffering a knee injury.