Roger Federer collected his 99th Australian Open victory and reached the third round in Melbourne for the 21st time with a 6-1, 6-4, 6-1 win Wednesday against Filip Krajinovic of Serbia.
The six-time Australian champion improved to 41-0 in the first two rounds here, finishing the one-hour, 32-minute victory with 14 aces, seven service breaks, 42 winners and just 14 unforced errors.
"I am very happy. It is a great start to the season so far," the 38-year-old Federer said. "I am feeling really relaxed out on the court. I trained hard and you hope it pays off and not that it was all for nothing this week. I am happy, I am still going and I am looking forward to the next one."
The third-seeded Swiss star will go for win No. 100 against Australian John Millman, a 6-4, 7-5, 6-3 winner against No. 31 seed Hubert Hurkacz of Poland. Federer is 2-1 head-to-head against Millman, with the loss coming in four sets in the fourth round of the 2018 U.S. Open.
"I played him two other times, once in Brisbane and I almost lost that one too," Federer said of Millman. "He is super good guy, unbelievably tough opponent. There are not many fitter guys than him out there and those are the guys I respect the most, actually. He gets absolutely the most out of the game and I hope it is going to be a great match with some great rallies."
Federer is already the only man to win 100 matches at a Grand Slam event, having won a record 101 times at Wimbledon.
Defending champion and No. 2 seed Novak Djokovic of Serbia also advanced in straight sets, finishing with almost as many aces (16) as unforced errors (17) in a 6-1, 6-4, 6-2 defeat of Japan's Tatsuma Ito. He won 93 percent (43 of 46) of his first-serve points.
"He was playing pretty aggressive and flat, with not too many unforced errors in the second set. I just managed to somehow find my way," Djokovic said. "My serve helped me a lot to get out of trouble."
He will face another Japanese player in the third round, as Yoshihito Nishioka eliminated No. 30 seed Daniel Evans of Great Britain 6-4, 6-3, 6-4.
In other second-round action Wednesday, Tennys Sandgren upset No. 8 seed Matteo Berrettini of Italy 7-6 (7), 6-4, 4-6, 2-6, 7-5. Sandgren next faces fellow American Sam Querrey. Querrey smashed 26 aces in his 7-6 (2), 4-6, 6-4, 6-4 victory against Lithuania's Ricardas Berankis.
Another American, 22-year-old Tommy Paul, outlasted No. 18 seed Grigor Dimitrov of Bulgaria 6-4, 7-6 (6), 3-6, 6-7 (3), 7-6 (3) to reach the third round at a Grand Slam for the first time. He will meet Marton Fucsovics of Hungary, a 6-4, 6-4, 6-3 winner over Jannik Sinner of Italy.
Other top seeds advancing included No. 4 Daniil Medvedev of Russia, No. 7 Alexander Zverev of Germany, No. 9 Roberto Bautista-Agut of Spain and No. 10 Gael Monfils of France.
--Field Level Media