German giant-killer Philipp Kohlschreiber downed a frustrated Andy Roddick to move into the fourth-round of the Australian Open in a titanic five-set struggle in the early hours of Saturday morning in Melbourne.
Kohlschreiber, the tournament's No.29 seed, eliminated the 2003 US Open winner with a 6-4 3-6 7-6 (11-9) 6-7 (3-7) 8-6 triumph in a tick under four hours.
The marathon match at Rod Laver Arena ended just after 2am local time.
Roddick - who launched a series of verbal assaults on chair umpire Emmanuel Joseph during the tense battle - served a career-high 42 aces.
However, Kohlschreiber himself sent down 32 winners on his serve and broke the weary American in the 14th game of the final set to secure what he immediately labelled the best win of his career.
In an astonishing contest packed full of inspiring passing shots, Kohlschreiber racked up 104 winners to his opponent's 79.
He did require five match points, all on the Roddick serve, before securing a ticket into the next phase of the event, however.
The German, who reached the fourth round at Melbourne Park in 2005, will tackle 24th seed Jarkko Nieminen on Sunday for a place in the last eight of the year's opening slam.
