Australian teenager Chris Guccione has sent world No.3 Juan Carlos Ferrero packing from the adidas International in Sydney.

The 19-year-old wildcard thundered down 19 aces to stun the tournament's top seed 6-3 7-6 (8-6) on centre court at Olympic Park.

Earlier, Mark Philippoussis also advanced with a 6-4 5-7 6-2 win over Spanish qualifier Ruben Ramirez-Hidalgo to have four Australians into the last 16 of the Australian lead-up event.

Philippoussis will meet embattled Brit Greg Rusedski for a place in the quarter-finals, while Guccione can look forward to a second-round date with veteran South African Wayne Ferreira, who upset American James Blake 6-2 6-4.

But Philippoussis's Davis Cup teammate Wayne Arthurs bowed out with a 6-4 6-4 loss to Dutch eighth seed Martin Verkerk, last year's French Open runner-up.

Other winners were Spanish third seed Carlos Moya, along with Max Mirnyi, Tommy Robredo, Karol Kucera, Felix Mantilla, Michael Llodra and Arnaud Clement.

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