Defending champion Alexander Zverev secured the last remaining semi-final spot at the O2, meaning Rafael Nadal is out.
Alexander Zverev beat Rafael Nadal in his ATP Finals opener but was no match for world number six Stefanos Tsitsipas on Wednesday.
Defending ATP Finals champion Alexander Zverev was in superb form as he overcame world number one Rafael Nadal in straight sets.
The ATP Finals draw pitted Novak Djokovic and Roger Federer against each other in Bjorn Borg Group.
There is just one spot in the ATP Finals still up for grabs in Paris this week after Alexander Zverev qualified on Wednesday.
Daniil Medvedev had not lost since the US Open final before Jeremy Chardy brought him back down to earth in Paris.
Taylor Fritz claimed the biggest win of his career by ranking, defeating the previously in-form Alexander Zverev.
Shanghai Masters champion Daniil Medvedev's unique style of play has not been seen before on the ATP Tour, according to Alexander Zverev.
Alexander Zverev was unable to halt the progress of Daniil Medvedev in the final of the Shanghai Masters.
After easing past Matteo Berrettini in the last four, Alexander Zverev will meet Daniil Medvedev in the final of the Shanghai Masters.