The Serb dismissed Spain's Pedro Martinez 6-3, 6-2, 6-2 in two hours and meets Italian qualifier Francesco Maestrelli in the second round.

It was his landmark 100th Australian Open victory.

"Great to be back once again, definitely my favourite court," the smiling 38-year-old told Rod Laver Arena.

"Centurion is pretty nice. I always give my best on the court, history-making is a great motivation."

He added: "I am blessed to be still playing at this level."

The former world number one raced into a 3-0 first-set lead as Serbian fans serenaded their hero.

Djokovic, now ranked four, pulled out of a warm-up event this month saying he was not physically ready.

His last competitive match was in early November as he attempts to limit the wear and tear on his creaking body.

But he showed no signs of discomfort or rustiness in moving freely around the Melbourne Park hard court to seal the first set with minimum fuss.

He broke the 71st-ranked Martinez's serve early in the second set and was hardly troubled on his own serve to take a 2-0 lead.

The third set went much the same way, the only moment of concern for Djokovic fans coming when he stretched out his right hamstring in between games.

Djokovic will need to gatecrash the duopoly of Carlos Alcaraz and Jannik Sinner if he is to break a tie with Margaret Court and win an all-out record 25th major.

Sinner is the two-time defending Australian Open champion and along with Alcaraz has dominated the majors in the past two years.

Djokovic has been stuck on 24 major titles since winning the US Open in 2023.

He reached the last four in Melbourne a year ago but retired from the match against Alexander Zverev with injury.

He did make one slice of history on Monday, his 81st Grand Slam equalling the all-time record men's singles appearances with old rival Roger Federer and Feliciano Lopez.