BRISBANE — Kyle Edmund overcame a mid-match blip before defeating South Korea's Chung Hyeon in a tight three-setter to reach the Brisbane International quarterfinals on Thursday.

The Briton was pushed hard by the inaugural Next Gen ATP Finals champion before coming through 7-6(7/3), 5-7, 6-4 in two hours and 38 minutes. He set up a clash with defending champion Grigor Dimitrov, who labored past John Millman 4-6, 7-6(10/8), 6-3.

Down 3-1 in the tiebreak of a fiercely-contested first set, Edmund scored six points in a row to edge ahead in the contest. Chung, who trailed his rival in the second set, fought back with a decisive break after Edmund blew the chance to go 4-1 up. The 21-year-old pushed on and broke Edmund again in the 12th game to level the match at one set apiece.

Edmund switched gears in the decider, breaking Chung for a 4-3 lead before clinching the match with three aces. He got a lot of momentum at the end of the second and broke me twice pretty quickly, said Edmund. So it was a good third set. I made an effort to really try and step up the intensity and energy and put some pressure on him.

It was good because the way I was serving in that third set, I knew if I got a break I was going to have a very good chance at holding out.

Uzbekistan's Denis Istomin defeated Jared Donaldson 7-6(7/5), 6-2 to reach his first ATP Tour quarterfinal since a title-winning effort at the Chengdu Open in September. Donaldson's American compatriot Ryan Harrison fired 11 aces in his 6-7(7/5), 6-4, 6-2 win over Yannick Hanfmann, the lucky loser who replaced the injured Andy Murray in the draw.

Becker's son presses

charges after racist slur

The son of former tennis star Boris Becker is pressing charges against a German nationalist lawmaker who insulted him with a racist slur.

Lawyer Christian-Oliver Moser told The Associated Press on Thursday that charges were filed on behalf of Noah Becker following unbearable and racist remarks from the Twitter account of nationalist lawmaker Jens Maier.

The tweet emerged after a magazine article was published, in which Noah, 23 said Berlin was a white city compared with London or Paris, and that he'd been attacked there because of his skin color.

Noah is the son of three-time Wimbledon champion and his ex-wife Barbara Becker, who has a German mother and an African-American father. Maier, a member of the Alternative for Germany party, has deleted Tuesday's tweet and denied writing it. — Reuters