The top two players in the world, Novak Djokovic and Rafael Nadal, will lead the way as twelve countries battle it out for the 2021 ATP Cup.
The team event will be held in Melbourne from February 1-5, a week before the Australian Open.
In 2020, Serbia defeated Spain 2-1 in a thrilling championship clash, which included a tantalising match-up between Djokovic and Nadal.
The 2021 ATP Cup will feature 14 of the Top 15 players in the FedEx ATP Rankings. Each team will consist of four players per country.
Russia has one of the strongest teams in the competition, with ATP World Tour Finals champion Daniil Medvedev and world No 8 Andrey Rublev representing it.
Qualification for the tournament was based on the ATP Ranking of each country’s top-ranked singles player, while Australia qualifies by virtue of a host wild card. Alex De Minaur, who earned two Top 15 wins at last year’s inaugural ATP Cup, will once again lead the way for Australia.
Roger Federer, who was supposed to team up with Stan Wawrinka for Switzerland, has withdrawn from the tournament as he is still not hundred per cent fit. The 39-year-old underwent two knee surgeries last year and is hasn’t put a date on his comeback yet.
Also missing in action is Nick Kyrgios, one of the heroes of the 2020 ATP Cup.
The draw will take place on 20 January, when the 12 teams will be divided into four groups of three for group stage, round-robin play. The four group winners will advance to the semi-finals.
Novak Djokovic, Dusan Lajovic, Filip Krajinovic, Nikola Cacic
Rafael Nadal, Roberto Bautista Agut, Marcel Granollers, Pablo Carreno Busta
Dominic Thiem, Dennis Novak, Philipp Oswald, Tristan-Samuel Weissborn
Daniil Medvedev, Andrey Rublev, Aslan Karatsev, Evgeny Dosnkoy
Diego Schwartzman, Guido Pella, Horacio Zeballos, Maximo Gonzalez
Matteo Berrettini, Fabio Fognini, Simone Bolelli, Andrea Vavassori
Kei Nishikori, Yoshihito Nishioka, Ben McLachlan, Toshihide Matsui
Gael Monfils, Benoit Paire, Nicolas Mahut, Edouard Roger-Vasselin
Stefanos Tsitsipas, Michail Pervolarakis, Markos Kalovelonis, Petros Tsitsipas
Denis Shapovalov, Milos Raonic, Peter Polansky, Steven Diez
Alexander Zverev, Jan-Lennard Struff, Kevin Krawietz, Andreas Mies
Alex de Minaur, John Millman, John Peers, Luke Saville