Laver Cup Tennis 2021 news - Highlights: Alexander Zverev beats John Isner Isner in tie break

Watch the highlights of the match between Alexander Zverev and John Isner at the 2021 Laver Cup tennis tournament. 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.