Glik suffered the problem after attempting a bicycle kick in training, soon after coach Adam Nawalka had submitted his squad list to Fifa.
Thankfully for the European country, injured players can be replaced up to 24 hours before their first game (against Senegal on June 19) so Stuttgart's Marcin Kaminski is on standby.
Bayern Munich striker Robert Lewandowski is undoubtedly the star name in the squad but there are four players based in England.
Ipswich goalkeeper Bartosz Bialkowski, Swansea keeper Lukasz Fabianski, Southampton defender Jan Bednarek and Hull winger Kamil Grosicki will all be travelling to Russia.
Here is Poland's 23-man squad for the World Cup:
Goalkeepers: Bartosz Bialkowski (Ipswich), Lukasz Fabianski (Swansea City), Wojciech Szczesny (Juventus).
Defenders: Jan Bednarek (Southampton), Bartosz Bereszynski (Sampdoria), Thiago Cionek (SPAL), Kamil Glik (Monaco), Artur Jedrzejczyk (Legia Warsaw), Michal Pazdan (Legia Warsaw), Lukasz Piszczek (Borussia Dortmund).
Midfielders: Jakub Blaszczykowski (Wolfsburg), Jacek Goralski (Ludogorets Razgrad), Kamil Grosicki (Hull City), Grzegorz Krychowiak (Paris St-Germain), Rafal Kurzawa (Gornik Zabrze), Karol Linetty (Sampdoria), Slawomir Peszko (Lechnia Gdansk), Maciej Rybus (Lokomotiv Moscow), Piotr Zielinski (Napoli).
Forwards: Dawid Kownacki (Sampdoria), Robert Lewandowski (Bayern Munich), Arkadiusz Milik (Napoli), Lukasz Teodorczyk (Anderlecht).