Victory put him alongside his fellow legends as solely the third man in historical past to win eight or extra titles on the identical Slam after Nadal (12 on the French Open) and Federer (eight at Wimbledon).
It additionally ensured he’ll as soon as once more be world primary when the brand new rankings are launched on Monday, usurping Nadal. Federer stays third with Thiem shifting up a spot to a career-high fourth.
But it wasn’t straightforward with the Serb wanting torpid and out for the depend in units two and three earlier than regaining his mojo after a medical timeout to grind down the gifted Thiem.
Djokovic had by no means earlier than received a Slam closing in seven earlier makes an attempt when discovering himself two units to 1 down.
The Serb, 32, was the overwhelming favorite, however the supremely match and quick Thiem, 26, all the time had the weapons to hassle him, which he deployed efficiently for a lot of the match, taming his serve and unleashing some explosive groundstrokes.
It was a nerveless begin from Djokovic, who comfortably held then put large stress on the Thiem serve, with a forehand into the web giving him a right away break and a psychological edge after some monster rallies.
Thiem, although, is as sturdy mentally as he’s bodily and he lastly acquired on the scoreboard after one other powerful service sport.
And towards the run of play, with Djokovic seemingly in management, he broke again, unleashing pinpoint groundstrokes to benefit from some unfastened Djokovic photographs.
But the world quantity two was unrelenting, breaking once more as Thiem served to remain within the set, with the Austrian sending down his first double fault of the match on the essential second.
Remarkably, a uncommon Djokovic double fault handed Thiem a break to go 2-1 up in set two with the brave Austrian refusing to go away.
The Serb was getting annoyed, taking a look at his teaching field and pointing at his head.
He refocused and as soon as once more started attacking the Thiem serve, breaking again for 4-4, pumping his fists when the fifth seed despatched a backhand large.
But two time warnings on his serve within the subsequent sport rattled Djokovic and he was damaged once more, with the Serb shedding his cool by patting the umpire’s foot on the changeover.
He had phrases with the official earlier than Thiem served out the set — the primary the Serb had dropped in an Australian Open closing since 2015.
Djokovic seemed dejected and was instantly damaged twice in set three as Thiem raced to a 4-Zero lead, having received six video games in a row with Djokovic imploding.
The Serb was heard telling a coach he was drained and after shedding the set, he went for a medical timeout.
He got here again and the fourth set went with serve till a Thiem double fault handed the Serb two break factors and he transformed to regain management, serving out the set with an ace.
Djokovic drew on all his expertise to drive one other break within the deciding fifth set to take a 2-1 lead and stored his foot on the fuel to assert an eighth crown from the final 13 Australian Opens.