Thiem beats Djokovic with storming finish to reach ATP Finals title decider

LONDON - Dominic Thiem came back from the brink of defeat to beat Novak Djokovic in a gripping last-four clash at the ATP Finals on Saturday as he reached the final for the second successive year.

The 27-year-old Austrian appeared to be sliding to defeat when he trailed 0-4 in the third-set tiebreak but stormed back to claim a 7-5, 6-7(10), 7-6(5) victory in just under three hours.

World number three Thiem was the better player in the first set, sealing it with an ace after breaking serve at 5-5.

An absorbing second-set tiebreak saw Thiem get four chances to seal victory but he double-faulted on one match point and Djokovic showed true grit to snatch the set.

Serves dominated in the decider and when Thiem started the day's second tiebreaker and then lost the next three points it seemed as though the end was nigh.

Instead the world number three roared back, winning the next six points and setting up two more match points with a scorching crosscourt backhand, one of many he unleashed during the duel.

Djokovic saved a fifth match point but Thiem finally got the job done when he forced his opponent to float a defensive forehand over the baseline.

Thiem will try to complete a breakthrough year, in which he claimed his first Grand Slam title by winning the US Open, against either Rafa Nadal or Daniil Medvedev in Sunday's climax, guaranteeing a first-time champion for the fifth year in a row.

"It was a mental battle, I got so tight in the second-set tiebreak," Thiem, who avenged his defeat by Djokovic in this year's Australian Open final, said on court.

"To play these legends is always special and to play here is also something special. I thought after winning the title in New York I would be more calm, but that was a mistake I guess."

Djokovic appeared a little flat at times, especially on his trademark returns, but still looked as though he had pulled an unlikely victory out of the fire, only to suffer an ambush.

"What he did from 0-4 in the tiebreak was unreal," Djokovic, who won the title in London from 2012-15, told reporters.

"I don't think I played bad, I made all my first serves; he just crashed the ball and everything went in. What can you do?"

Thiem, who racked up his 300th career Tour win, is now established as a major force and will attempt to go one better than last year when he lost to Stefanos Tsitsipas in the final.

Defeat means Djokovic will have to wait until the event moves to Turin next year, after 12 years in London, to try again to equal Roger Federer's six titles at the year-ender. —Reuters