In round 4 of theongoing Australian Open Tennis, World no.1 Roger Federer defeated World no.22 Australian Lleyton Hewitt in straight sets 6-2, 6-3, 6-4. This is the 15th win for the Swiss great Federer over the fellow Australian. The last time Lleyton Hewitt beat Federer was during the Davis Cup at Melbourne Park in 2003. Since then they have had many close encounters. But Federer has beaten Hewitt 14 times without loss. And this win is his 15th.