[4] For the inaugural edition, all teams participating had a squad of ten players, with six being on the field of play including a captain.

[5] Before the launch, Steven Gerrard, Michael Owen, Robert Pires, Michael Ballack, Deco, Carles Puyol, Roberto Carlos and Jay-Jay Okocha were announced as player participants while Australia, Brazil, China, England, France, Germany, Italy, Mexico, Netherlands, Nigeria, Portugal and Spain were announced as nation participants.

[1][2][3] The 2017 edition was officially launched at The O2 Arena on 24 January 2017, during which more players were announced, namely Jens Lehmann, David James, Emile Heskey, Rio Ferdinand, Dominic Matteo and Gaizka Mendieta.

[6][7][8] The group stage draw, conducted by captains Ballack and Pires, took place on 24 March, it was broadcast live in the United Kingdom on Sky Sports News HQ.

[10][11][12][13][14][15][16] Don Hutchison, Olivier Dacourt, Míchel Salgado, Martin Jørgensen, Stig Tøfting, William Gallas and Eric Abidal were later announced.

[30] Scotland completed their squad on 21 April with the additions of Jackie McNamara, Mark Burchill and Neil McCann.

[41] Juninho, Djalminha, Danny Murphy, Paul Merson, Carlos Marchena and Lee Hendrie joined during the following week.

[42] Italy added six on 29 June, including Paolo Di Canio, but also lost two as Christian Abbiati and Simone Perrotta (injured) left the competition.

[4] Barry Ferguson returned to play for hosts Scotland, captaining the side in place of Dominic Matteo.

[54] David James and Emile Heskey's return for England was confirmed on 25 October, with Wayne Bridge joining a day later.

[55][56][57] Maik Taylor, Stephen Craigan, Steven Reid, Gaizka Mendieta and Luke Young were added to their respective teams towards the end of October.

[66][67] Republic of Ireland's John Aldridge signed on 7 November, along with Wes Brown (England) and Pierre van Hooijdonk (Rest of the World) days later.

[72] Star Sixes revealed Martin Jørgensen and Ryan Giggs as players at the end of November, with Craig Bellamy, Darren Bent and Charlie Miller subsequently being announced.

[81] Andy Legg and Simon Church were revealed on the opening day, replacing Giggs and Craig Bellamy; whose withdrawal coincided with his temporary departure as academy coach of Cardiff City after claims of bullying.