Thiem had taken early command against an unsettled and out-of-sorts Djokovic, who seemed continually distracted after taking almost one minute to deliver his very first serve in the swirling wind and who eventually handed the first set 6-2 to the Austrian in just 29 minutes.
Thiem only dropped one point on serve in that set - the first that Djokovic had dropped all tournament - and had conceded only two more on his delivery in the second when rain first forced the pair off court with the Serb still struggling even while clinging on to a 3-2 lead.
The 10-minute break was just what the doctor ordered for Djokovic, who seemed to have found new resolve on return in his bid for a 27th successive Grand Slam match win while Thiem’s dominance on serve came to an end as he was broken in the eighth game.
Djokovic ended up levelling the match 6-3 after a 37-minute stanza but was still toiling by his immaculate standards in the third, when Thiem broke him in the fourth game.
When the rains came again, Djokovic looked happy to race back to the locker room.
It remains anybody’s match as Thiem looks for a chance to earn revenge for last year’s final defeat by Nadal and Djokovic seeks a third final date with the 11-time champion.