Roger Federer and Bjorn Borg helped to launch the third edition of the Laver Cup, which will see Team Europe take on Team World in Geneva, Switzerland in September.

To publicise the event, the pair went on a boat trip on Lake Geneva, where Federer hit balls at the Jet d’Eau fountain, before meeting hundreds of fans outside Palais Eynard.

The tournament – named after former Australian tennis star Rod Laver – sees the cream of European talent take on their counterparts from the rest of the world, with Borg and John McEnroe the respective captains.

Team Europe are currently unbeaten in Laver Cup tennis, having won the inaugural event in Prague, Czech Republic in 2017 before retaining the title in Chicago, USA a year later.

The 2019 edition will be staged at the Palexpo Convention Centre in Geneva from September 20-22.