Dominic Thiem reached the semi-finals on Tuesday at the ATP Finals with a win against Novak Djokovic. After a blood-curdling game in three sets, the Austrian was surprisingly too strong for the number one in the world: 7-6 (5), 3-6 and 7-6 (5).

Earlier this week, Thiem dealt with Roger Federer (7-5 ​​and 7-5). Djokovic and Federer will compete on Thursday for a second place in the group.

Thiem and Djokovic were on the London track for almost three hours. Djokovic managed to win the first set in a tiebreak, but had to leave the two sets to his opponent.

Especially in the third set the tension was to cut. Thiem quickly took a break ahead, but halfway through the set Djokovic came back in the game. At the end of the set, Thiem Djokovic broke again and was allowed to serve for the game at a score of 6-5, but again he was unable to keep his service.

Thiem trailed 3-0 in the decisive tiebreak and seemed to have to give in. The number five world, however, found a second breath, fully fought back and managed to win the tiebreak with 7-5.

For Thiem it was his second win in a row against Djokovic. Earlier this year at Roland Garros, the two were already in the semi-finals and Thiem was also the strongest back then.

Novak Djokovic and Dominic Thiem were on the London track for almost three hours. (Photo: Getty Images)

Federer strikes in tiebreak

Federer did win his second group match at the ATP Finals earlier on Tuesday. The Swiss was too strong for Matteo Berrettini in two sets.

The 38-year-old Federer took eighty minutes in London to put 7-6 (2) and 6-3 on the scoreboard against the 15-year-old Italian.

The twenty-time Grand Slam winner hunts for his seventh title in the ATP Finals. The number three in the world already won the year-end tournament in 2003, 2004, 2006, 2007, 2010 and 2011. For Berrettini (ATP-8) it is his first participation.

In the other group (group André Agassi) are Rafael Nadal, Alexander Zverev, Daniil Medvedev and Stéfanos Tsitsipás. Zverev won the first group match against Nadal on Monday, while Tsitsipás was too strong for Medvedev.

Stand group Björn Borg

  • 1. Dominic Thiem 2-2 (4-1)
  • 2. Novak Djokovic 2-1 (3-2)
  • 3. Roger Federer 2-2 (2-2)
  • 4. Matteo Berrettini 2-0 (0-4)