The ATP Tour Finals continue on Wednesday, with four matches taking place across the men's and men's doubles brackets.
The pick of the matches in the evening session comes from the Red Group, as former world number one Daniil Medvedev takes on Stefanos Tsitsipas.
Here is everything you need to know about the Tour Finals clash, including where you can watch all of the action live.
Stefanos Tsitsipas vs Daniil Medvedev Preview
It's been an indifferent year for both Tsitsipas and Medvedev, with neither hitting the heights that were expected of them when the season began back in January.
The duo has met ten times in their careers to date, with Medvedev holding a strong lead in the head-to-head, having claimed victory over Tsitsipas on seven occasions. The Greek did get the better of his opponent the last time they met though, coming out on top at the 2022 Western & Southern Open.
Wednesday's meeting is a do-or-die clash for both players, with the duo falling to defeat in their opening matches against Novak Djokovic and Andrey Rublev respectively.
Stefanos Tsitsipas vs Daniil Medvedev Prediction & Tips
Daniil Medvedev enters the match as the bookmaker's favourite, with the money line for the Russian fluctuating between 1/3 and 4/9 over the course of the last 24 hours.
Tsitsipas is considered to be a 13/8 shot to get the better of Medvedev for a second successive meeting.
Whilst there are glaring holes in the game of both players right now, we think that Medvedev should have too much for Tsitsipas on this occasion, as long as he can maintain a steady first serve percentage.
RealSport101 Prediction - Medvedev to win in straight sets (6/5)
Where to Watch Stefanos Tsitsipas vs Daniil Medvedev
Amazon Prime will be offering full coverage of the ATP Tour Finals and the ATP Tour Doubles Finals.
The match is expected to begin around 8:00 PM GMT.
For more articles like this, take a look at our Sports page.