Who will progress to the semi-finals? Follow the action with Katy Murrells’s game-by-game report.   15:23 Zverev is asked on court whether he’s playing the best tennis of his life. You guys have got to relax a bit.

Alexander Zverev secured a spot in the last four of the ATP Finals on Friday after winning the first set of his final group match with Carlos Alcaraz.

Alexander Zverev got his revenge against Carlos Alcaraz at the ATP Finals and told his rival: "You win too much." The German star sealed his place as the group winner and reached the semi-final as he beat the four-time Major winner 7-6 (5) 6-4.