Salman Al-Faraj, who usually captains Saudi Arabia, is not in the starting line-up after suffering an injury in the team's opening match.
Argentina face Mexico in the other Group C match later Saturday.
Wojciech Szczesny; Kamil Glik, Jakub Kiwior, Matty Cash, Bartosz Bereszynski; Grzegorz Krychowiak, Piotr Zielinski, Przemyslaw Frankowski, Krystian Bielik; Arkadiusz Milik, Robert Lewandowski (capt)
Coach: Czeslaw Michniewicz (POL)
Saudi Arabia (4-1-4-1)
Mohammed Al-Owais; Abdulelah Al-Amri, Ali Al-Bulayhi, Mohammed Al-Burayk, Saud Abdulhamid; Abdulelah Al-Malki; Sami Al-Naji, Mohamed Kanno, Feras Al-Brikan, Salem Al-Dawsari (capt); Saleh Al-Shehri
Coach: Herve Renard (FRA)
Referee: Wilton Sampaio (BRA)