Laver Cup 2021 - 'Why did John Isner stop?!' - Disbelief as Alexander Zverev wins bizarre point

Laver Cup 2021 - 'Why did John Isner stop?!' - There is total disbelief as Alexander Zverev wins a truly bizarre point in their match in Boston. You can watch the Laver Cup live on Eurosport 1, eurosport.co.uk and via the Eurosport app. Download the Eurosport app for iOS and Android now to get yourself all set for the action from Boston.