Roddick and Federer through
Andy Roddick won through to the quarter-finals on day seven of the Australian Open after a rollercoaster match against Croatian Mario Ancic.
Roger Federer also cleared his fourth-round hurdle when he cruised past Novak Djokovic, with seventh seed Tommy Robredo, Czech Tomas Berdych and German 12th seed Tommy Haas the other winners today.