Krychowiak and Szymański were included in the Polish national team
Robert Lewandowski, Wojciech Szczęsny and Arkadiusz Milik were also in the application.
The Polish national soccer team has named its squad for the World Cup in Qatar.
Two former Russian players - midfielders Grzegorz Krychowiak, who played for Lokomotiv Moscow and Krasnodar, and Sebastian Szymanski, who played for Dynamo Moscow, were included in the squad.
Goalkeepers: Wojciech Szczęsny (Juventus), Lukasz Skorupski (Bologna) and Bartlomiej Drongowski (La Spezia).
Defenders: Jan Bednarek (Aston Villa), Kamil Glik (Benevento), Jakub Kiver (La Spezia), Mateusz Wieteska (Clermont), Artur Jędrzejczyk (Legia), Matty Cash (Aston Villa), Robert Humny (Augsburg), Bartosz Bereshinski (Sampdoria), Nikola Zalewski (Roma).
Midfielders: Grzegorz Krychowiak (Al-Shabab Saudi Arabia), Christian Bielik (Birmingham), Damian Szymanski (AEK Greece), Piotr Zielinski (Napoli), Sebastian Szymanski (Feyenoord), Szymon Zurkowski (Fiorentina), Jakub Kaminski (Wolfsburg), Przemysław Frankowski (Lance), Kamil Grosicki (Pogoń), Michal Skorasz (Lech),
Forwards: Robert Lewandowski (Barcelona), Karol Sviderski (Charlotte, USA), Arkadiusz Milik (Juventus), Krzysztof Piatek (Salernitana).
In the group stage, the Poles will face Argentina, Mexico and Saudi Arabia.