Roger Federer and his Team Europe teammates are looking to defend their title. (Getty Images)

The third edition of the Laver Cup begins on Friday, and the participating players are starting to trickle into Geneva. On Tuesday some competitors started preparing by practicing on the stadium court at Palexpo. 

Roger Federer will once again team up with long-time friend and rival Rafael Nadal. It will be Nadal's second Laver Cup appearance; he last competed in 2017 where he famously took to the doubles court with Federer. 

 
 
 
 
 
 
 
 
 
 
 
 
 

Friends. Reunited. #LaverCup #fedal @rogerfederer @rafaelnadal

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Stefanos Tsitsipas posed for a photo with the Swiss following their practice session.

They will be teammates on Team Europe alongside Rafael Nadal, Dominic Thiem, Fabio Fognini, Alexander Zverev and Roberto Bautista Agut. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

LC 2019 ????????????#teameurope

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Nick Kyrgios is back for his third consecutive Laver Cup. The Aussie will play for Team World and attempt to dethrone Team Europe for the first time.

 
 
 
 
 
 
 
 
 
 
 
 
 

My $oul is PURE, might not be perfect, but we are gonna work to make it all worth it ☘️???? #TeamWorld #LaverCup

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Kyrgios' team includes Jack Sock, Taylor Fritz, John Isner, Milos Raonic, Denis Shapovalov and Jordan Thompson.

Thiem joined teammate Nadal for a quick practice session. Team Europe's members are all ranked within the Top 11.

 
 
 
 
 
 
 
 
 
 
 
 
 

Practice with legends ???????????? Let’s go Team Europe ???????? #geneva #lavercup #createdwithadidas #4ocean

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Friday's matches are worth one point each, increase to two points apiece on Saturday, and culminate with three points per match on Sunday. The first team to reach 13 points wins. The three-day event will consist of three singles matches and one doubles bout each day.