Novak Djokovic had the big stage and a list of milestones that he needed to celebrate with his 100th win at the Australian Open.

He delivered the kind of performance that showed his rivals and his fans he's here with a single objective: 25th Grand Slam title.

The 38-year-old Serbian equaled two all-time tennis records by starting his 21st Australian Open and his 81st Grand Slam event, and he added another milestone Monday night with his 100th win at Melbourne Park.

He already owns so many tennis records, but he really liked the sound of this one.

"I mean, what can I say? Centurion is pretty nice," Djokovoic said after his 6-3, 6-2, 6-2 first-round win over Pedro Martinez of Spain. "Nice feeling."

His record now stands at 100-10 at the Australian Open, where he's won 10 titles. And that makes him the first man to win 100 or more matches on three surfaces at the Grand Slams, with his 102 on grass at Wimbledon and 101 on clay at Roland Garros.

On the same day, three Chinese players were in action at a warm Melbourne Park. Shang Juncheng stole the show after overpowering former top-10 player Roberto Bautista-Agut of Spain 6-4, 6-7(2), 6-4, 6-0 in two hours and 52 minutes.

The 20-year-old blasted 63 winners and will next face Botic van de Zandschulp, who upset 27th seed Brandon Nakashima in four sets.

Buyunchaokete, China's highest-ranked men's player, was troubled by a wrist injury in his 6-3, 7-6(3), 6-1 loss to 21st seed Denis Shapovalov of Canada.

The match took a dramatic turn when the world No.120 tumbled in the second set tiebreak, and he bravely battled on, but could not halt Shapovalov's rampant serve.

In the women's draw, Chinese qualifier Yuan Yue produced a gutsy effort against Iga Swiatek, who battled through 7-6(5), 6-3 in two hours.

Second-seeded Swiatek is chasing an elusive Australian Open title to complete her slate of major trophies.

Nonetheless, the Pole struggled at times to counter the aggressive play of the 130th-ranked Yuan, who did require medical attention in the third set due to a back issue.

"I was a bit rusty in the beginning, and she took the opportunity," said Swiatek, who had 35 unforced errors. "Many ups and downs, I have some stuff to work on."