Goalkeeper Assaf Qarny, defenders Saeed Al Mowalad and Mohammed Jahfali, and midfielder Mohammed Al Kuwaykibi were also cut from a 28-man preliminary squad named last month.
Argentinian Pizzi has included Fahad Al Muwallad, Yahya Al Shehri and Salem Al Dawsari after the trio spent four months on loan in Spain with Levante, Leganes and Villarreal before returning to their parent clubs.
Saudi Arabia's squad are all currently contracted to clubs in the country's domestic league, with 10 on the books of back-to-back Saudi Premier League champions Al Hilal. A further seven play for Jeddah's Al Ahli, who won the title in 2016.
The Saudis, beaten 3-0 by Peru in Switzerland in a friendly on Sunday, face hosts Russia in the opening game of the World Cup on June 14, the first time an Asian nation has played in the competition's curtain-raiser.
They also face Egypt and Uruguay in the group stage.
Goalkeepers: Mohammed Al Owais (Al Ahli), Yasser Al Mosailem (Al Ahli), Abdullah Al Mayouf (Al Hilal) Defenders: Mansoor Al Harbi (Al Ahli), Yasser Al Shahrani (Al Hilal) Mohammed Al Breik (Al Hilal), Motaz Hawsawi (Al Ahli), Osama Hawsawi (Al Hilal), Omar Hawsawi (Al Nassr), Ali Al Bulaihi (Al Hilal) Midfielders: Abdullah Al Khaibari (Al Shabab), Abdulmalek Al Khaibri (Al Hilal), Abdullah Otayf (Al Hilal), Taiseer Al Jassim (Al Ahli), Houssain Al Mogahwi (Al Ahli), Salman Al Faraj, Mohamed Kanno (both Al Hilal), Hattan Bahebri (Al Shabab), Salem Al Dawsari (Al Hilal), Yahya Al Shehri (AlNassr), Fahad Al Muwallad (Al Ittihad)
Forwards: Mohammad Al Sahlawi (Al Nassr), Muhannad Assiri (Al Ahli)
(Reporting by Michael Church in Hong Kong; Editing by Peter Rutherford)
