(Reuters) - Defending champion Lucas Pouille crashed out of the Hungarian Open after a shock straight-sets defeat by Australia's John Millman in the round of 16 on Thursday.
Millman, ranked 80 places above world number 14 Pouille, needed 73 minutes to clinch a 6-3 6-4 victory and the best win of his career by ranking position.
"I'm really happy with how I played, how I stuck with it mentally... I took my chances well today," Millman said.
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"I've come close a few times of late but couldn't quite get through, so a really good result, especially considering it's my first tournament on clay in a long time."
The 28-year-old Millman set up a quarter-final against Germany's Yannick Maden who overcame compatriot Maximilian Marterer 6-1 6-3.
Fourth seed Denis Shapovalov also suffered an early exit as the 19-year-old Canadian was beaten 6-2 6-4 by Georgia's Nikoloz Basilashvili.
Eighth seed Andreas Seppi powered past Russia's Mikhail Youzhny 6-1 6-2 to reach the last eight.
(Reporting by Shrivathsa Sridhar in Bengaluru, editing by Ed Osmond)