Great Britain's Andy Murray upset No. 2 seed Nikoloz Basilashvili of Georgia 6-7 (4), 7-6 (3), 6-3 on Wednesday to reach the quarterfinals of the Sydney Tennis Classic.

The former World No. 1 struck eight aces and saved seven of nine break points. Murray, who, registered the only service break of the deciding set in the second game, will next face No. 8 seed David Goffin of Belgium, a 6-2, 6-3 winner against American Denis Kudla.

Murray's countryman, third-seeded Daniel Evans, also made the final eight with a 6-2, 6-3 win over Spain's Pedro Martinez.

Top seed Aslan Karatsev of Russia, No. 4 Reilly Opelka and No. 5 Lorenzo Sonego of Italy also advanced. Unseeded American Brandon Nakashima pulled off a 7-6 (7), 7-6 (6) upset of seventh-seeded Italian Fabio Fognini.

Adelaide International 2

No. 3 seed Karen Khachanov of Russia advanced to the quarterfinals in Adelaide, Australia, with a 7-5, 6-3 defeat of Gianluca Mager of Italy.

Khachanov hammered 13 aces and never faced a break point, losing only two points (32 of 34) on his first serve. He will face France's Arthur Rinderknech after his 5-7, 6-3, 6-2 win against South Korea's Soonwoo Kwon.

Australian wild-card entry Thanasi Kokkinakis knocked off No. 2 seed John Isner 6-7 (5), 7-6 (5), 7-6 (4) in two hours and 45 minutes. No. 4 seed Marin Cilic of Croatia eliminated Spain's Jaume Munar 7-6 (6), 6-2. French qualifier Corentin Moutet upset No. 8 Marton Fucsovics of Hungary 6-2, 6-2.

Top seed Gael Monfils of France, coming off a win at least week's Adelaide International 1, was forced to retire due to a back injury in the third set against Thiago Monteiro of Brazil.

--Field Level Media