Sixth seed Grigor Dimitrov has bounced Australia’s John Millman out of the Brisbane International.

But third-seeded Briton Kyle Edmund wasn’t so lucky in the second round, upset by Japanese qualifier Yasutaka Uchiyama in straight sets.

Bulgaria’s Dimitrov was the first man into the Brisbane quarter-finals after sealing the 6-3 6-4 second round win over world No.38 Millman.

Millman showed the fight that pulled off a shock 2018 US Open fourth round win over Roger Federer to come back from 4-1 down in the second set.

But there was no stopping world No.19 Dimitrov.

The 2017 Brisbane champion booked a quarter-final berth against the winner of second seed Kei Nishikori’s clash with American Denis Kudla.

Meanwhile, Edmund suffered a shock loss despite being fresh from a first round bye.

The world No.14 fell 7-6 (8-6) 6-4 to Uchiyama.

World No.180 Uchiyama’s quarter-final opponent will be the winner of eighth-seeded Australian Nick Kyrgios’ clash with France’s Jeremy Chardy.