Defending champion Roger Federer continued his dominance over Richard Gasquet to reach the round of 16 at the Australian Open on Saturday.

In just over two hours, the second seed Federer beat the Frenchman 6-2, 7-5, 6-4 and will face Hungary’s Marton Fucsovics for a place in the quarter-finals.

Federer, who’s in pursuit of Slam No 20 is yet to drop a set in Melbourne.

Chung sends Zverev crashing out

Chung Hyeon became the first South Korean man ever to reach the round of 16 at the Australian Open with a five-set upset win over fourth seed Alexander Zverev on Saturday.

The 58th-ranked Chung beat a top-five ranked opponent for the first time with his 5-7, 7-6 (7/3), 2-6, 6-3, 6-0 victory in 3hr 22min on Rod Laver Arena.

He will face six-time champion Novak Djokovic in Monday’s fourth round.

Chung’s feat also makes him only the third South Korean player – man or woman – to reach the round of 16 at a Grand Slam.

Djokovic sails to fourth round

Six-time champion Novak Djokovic downed Spanish 21st seed Albert Ramos-Vinolas in straight sets to power into the fourth round at the Australian Open on Saturday.

The Serbian 14th seed won 6-2, 6-3, 6-3 and will face South Korean surprise packet Chung Hyeon for a place in the quarter-finals.

Berdych halts Del Potro’s run

Veteran Tomas Berdych reached the round of 16 for the 10th time at the Australian Open with a straight sets win over Juan Martin Del Potro on Saturday.

The 32-year Czech eliminated the 12th-seeded Argentine 6-3, 6-3, 6-2 in 2hr 16min on Hisense Arena.

Berdych, who has played in the semi-finals twice in Melbourne, will face Italian journeyman Fabio Fognini in their first Grand Slam match in Monday’s fourth round.

Thiem eases into round of 16

Austria’s fifth seed Dominic Thiem reached the round of 16 with a straight sets win over Frenchman Adrian Mannarino on Saturday.

Thiem downed the 26th-seed 6-4, 6-2, 7-5 in 2hr 8min on Margaret Court Arena and will face Tennys Sandgren for a place in the quarter-finals.

The Austrian has now reached the round of 16 at his last six Grand Slams.

Thiem showed no ill-effects of his five set win over American qualifier Denis Kudla in the second round in fierce heat on Thursday.

Sandgren’s march continues

American Tennys Sandgren won only his third Grand Slam match to reach the round of 16.

The 97th-ranked Sandgren got past German Maxmilian Marterer 5-7, 6-3, 7-5, 7-6 (7/5) in just under three hours on Show Court Two.

He will now line up against Austrian fifth seed Dominic Thiem on Monday for a place in the quarter-finals.

Sandgren upset former champion Stan Wawrinka in straight sets in the third round in the biggest win of his career on Thursday.

Men’s singles 3rd round results:-

Dominic Thiem (AUT x5) bt Adrian Mannarino (FRA x26) 6-4, 6-2, 7-5

Tennys Sandgren (USA) bt Maximilian Marterer (GER) 5-7, 6-3, 7-5, 7-6 (7/5)

Marton Fucsovics (HUN) bt Nicolas Kicker (ARG) 6-3, 6-3, 6-2

Fabio Fognini (ITA x25) bt Julien Benneteau (FRA) 3-6, 6-2, 6-1, 4-6, 6-3

Chung Hyeon (KOR) bt Alexander Zverev (GER x4) 5-7, 7-6 (7/3), 2-6, 6-3, 6-0

Tomas Berdych (CZE x19) bt Juan Martin Del Potro (ARG x12) 6-3, 6-3, 6-2

Novak Djokovic (SRB x14) bt Albert Ramos (ESP x21) 6-2, 6-3, 6-3

Roger Federer (SUI x2) bt Richard Gasquet (FRA x29) 6-2, 7-5, 6-4

(with inputs from AFP)