Roddick Back In Slam Semis But Federer Up Next At Aussie

The good news? Roddick won the last time I played, and both of his victories coming on hardcourts.. The bad news for Roddick: Federer has dominated him, leading the series 15-2 (6-0 in majors). Next for Roddick in a semifinal Thursday, 13-Time Grand Slam champion and world No 2 Roger Federer, which gave no 8 Juan Martin del Potro of Argentina 6-3, 6-0, 6-0.