00:20 CET - What a win for Jannik Sinner (21) - he has seen off world number one Novak Djokovic (36) 7-5, 6-7, 7-6 for a second group win and to blow it wide open.
A landmark victory for the Italian.
23:17 CET - A tense tie-break has sent the game between Jannik Sinner (21) and Novak Djokovic (36) into a deciding set with the Serbian winning the second set 7-6.
22:08 CET - It looks like Jannik Sinner (21) came to play. The Italian has won the first set against Novak Djokovic (36) 7-5 after 57 minutes of play.
20:53 CET - Just a few minutes from our final game of the day as Jannik Sinner (21) takes on Novak Djokovic (36) - a player he called 'the best the sport has ever seen'. What can he do tonight?
16:14 CET - Hear from Tsitsipas now after he was forced to withdraw from his game with Rune - he will be replaced in the Finals by Hubert Hurkacz (26).
15:02 CET - Just three games into their group game, Stefanos Tsitsipas has been forced to retire against Holger Rune, gifting the Dane a valuable win in Turin.
5:41 CET - World number one Novak Djokovic clashes with Jannik Sinner after Stefanos Tsitsipas’ clash with Holger Rune as the ATP Finals continue in Turin.
