The 2018 FIFA World Cup was an international football tournament held in Russia from 14 June to 15 July 2018.
The 32 national teams involved in the tournament were required to register a squad of 23 players, including three goalkeepers.
[1] A provisional list of 35 players per national team was submitted to FIFA by 14 May 2018, one month prior to the opening match of the tournament.
[2] From the preliminary squad, the final list of 23 players per national team was submitted to FIFA by 4 June, 10 days prior to the opening match of the tournament.
[2] FIFA published the final lists with squad numbers on their website the same day.
[1] For players named in the 35-player preliminary squad, there was a mandatory rest period between 21 and 27 May 2018, except for those involved in the 2018 UEFA Champions League Final played on 26 May.
The numbers of caps and goals listed for each player do not include any matches played after the start of the tournament.
[10] Coach: Juan Antonio Pizzi Saudi Arabia's 28-man preliminary squad was announced on 17 May 2018.
[22] Coach Julen Lopetegui was sacked and replaced by Fernando Hierro on 13 June.
[32] The final squad was initially announced on 30 May,[33] but was extended to 24 players on 31 May after the suspension of Paolo Guerrero was lifted.
[38] Manuel Lanzini withdrew injured and was replaced by Enzo Pérez on 9 June.
[49][50] Coach: Óscar Ramírez Costa Rica's final squad was announced on 14 May 2018.
[51] Rónald Matarrita withdrew injured and was replaced by Kenner Gutiérrez on 15 June.
[62] Diego Reyes withdrew injured and was replaced by Érick Gutiérrez on 13 June.
[64] The squad was reduced to 26 players on 22 May as Kwon Chang-hoon and Lee Keun-ho withdrew injured.
[70] Coach: Hernán Darío Gómez Panama's 35-man preliminary squad was announced on 14 May 2018.
[72] Alberto Quintero withdrew injured and was replaced by Ricardo Ávila on 6 June.
[77] Frank Fabra withdrew injured and was replaced by Farid Díaz on 9 June.
[84] Saliou Ciss withdrew injured and was replaced by Adama Mbengue on 17 June.