Federer and Djokovic have never teamed up before but will do so for Team Europe in the second edition of the Laver Cup.
During the inaugural 2017 event, Federer joined Rafael Nadal to beat Jack Sock and Sam Querrey in the doubles.
This time around Team World have opted for Sock to play alongside Wimbledon finalist Kevin Anderson.
And Federer is excited to finally have Novak Djokovic on his side of the net.
“When you can’t beat them you have to join them. I am very excited,” Federer said.
“To be quite honest, last year it was an odd feeling when you’re sitting on the bench because I am a tennis player and I want to play.
“But for the first time I looked towards the court and thought ‘Oh Dominic Thiem’s playing or Rafa’s playing and those guys are playing better than me right now’.
“And I’m sure I’ll feel the same when Novak’s out there. It’s cool watching my guy, my team member beat up the other guy. This time it is actually good for me.
“It is going to be great fun and I can’t wait for not just the matches but also spending time together.”
How to watch Roger Federer and Novak Djokovic on TV
Roger Federer and Novak Djokovic’s clash with Jack Sock and Kevin Anderson is live on Sky Sports.
The doubles clash will be shown on three channels with Sky Sports Main Event, Sky Sports Action and Sky Sports Mix all broadcasting the match.
Coverage starts at 1am with the players expected to take the court at around 2.30am (BST).
How to watch Roger Federer and Novak Djokovic online
With coverage on both Sky Sports and Amazon Prime, there are a couple of choices.
Getting a Prime account is easy but you must adhere to Amazon’s Terms and Conditions when signing up.
Amazon offer a 30-day free trial for new Prime customers. A subscription after this starts at £7.99 a month.
For Sky Sports, you can stream the action live online on your desktop or laptop via the Sky Go app, which if you’re an existing customer, is also available on iOS and Android smartphone and tablet devices.
Sky Go is also available on a number of platforms including Amazon Fire devices, iPad, Mac computers and laptops, Playstation 3, PS4 and Xbox One.
If you’re not currently a Sky Sports customer but can’t stand to miss out on the action, you can add the channels to your box via a NOW TV subscription.
Day passes, which let you add Sky Sports channels for 24 hours, start at £6.99 a day, with a weekly pass starting from £10.99, and no locking in to a contract.
NOW TV doesn’t even require a typical television to use, as it is also available on a NOW TV Box, Chromecast, PS4, PS3, Xbox One, Xbox 360, Roku, LG Smart TV, PC or Mac, and selected mobile and tablet devices.
Source : EXPRESS