MELBOURNE (Reuters) - American Andy Roddick beat Tommy Robredo 7-5 6-1 6-3 in the fourth round of the Australian Open on Sunday, extended his perfect record against the Spaniard to 10 matches.
The seventh seed, who has only conceded one set to Robredo in their 10 meetings, overwhelmed him again to wrap up a comprehensive victory in one hour and 47 minutes.
Roddick, 26, has made the semi-finals three times at Melbourne Park in his seven previous visits but has yet to make the final.
His quarter-final opponent on Tuesday will be either defending champion Novak Djokovic or 2006 runner-up Marcos Baghdatis.
Reporting by Julian Linden. Editing by Alastair Himmer