[1] 1 On 29 September, Sam Carter and James Hanson were called up to the squad to replace Will Skelton and Wycliff Palu, injured during Australia's game with Uruguay.
[9] After injuries to Rhys Webb and Leigh Halfpenny during Wales' warm-up match against Italy, Mike Philips and Eli Walker were called up to replace the injured duo.
[11] 1 On 21 September, Tyler Morgan was called up to the squad to replace Cory Allen who tore his hamstring in Wales's opening win against Uruguay.
[12] 2 On 28 September, Gareth Anscombe and James Hook were called up to the squad to replace Hallam Amos and Scott Williams who were injured in Wales's win against England.
[13] 3 On 11 October, Liam Williams was ruled out of the World Cup having suffered an injury against Australia, and Eli Walker re-joined the squad to replace him.
[23] 1 On 27 September, Jan Serfontein was called up to the squad to replace captain Jean de Villiers, injured during South Africa's game with Samoa.
[30] 2 Due to an injury to Agustín Creevy, usual prop Lucas Noguera Paz will cover hooker from the bench against South Africa in the Bronze Final.
However, an injury sustained in training for prop Marcos Ayerza ruled him out of the Bronze Final the day before the match, and Santiago García Botta was called up as his replacement.
[42] 1 On 24 September, James Pritchard was called up to the squad to replace Liam Underwood, injured during Canada's opening game with Ireland.
[45] 1 On 20 September, Rémy Grosso was called up to the squad to replace Yoann Huget, injured during France's opening game with Italy.
[48] 2 On 12 October, Rhys Ruddock was called into replace Peter O'Mahony, who was ruled out of the World Cup having suffered knee ligament damage against France.
[49] 3 On 13 October, Mike McCarthy was called into replace Paul O'Connell, ruled out of the World Cup after tearing his hamstring during the group stage victory over France.
[54] 2 On 5 October, Alberto De Marchi and Andrea Lovotti were called up to the squad to replace the injured Martin Castrogiovanni and Michele Rizzo.