Dutch coach Louis van Gaal will kick off World Cup preparations on Wednesday with a training camp for 20 players based in The Netherlands.
Van Gaal is still unable to call up a full squad because of players' committments in foreign leagues.
Feyenoord defender Terence Kongolo and strikers Juergen Locadia (PSV) and Luc Castaignos (FC Twente) are the uncapped trio in the 20-strong camp summoned to Hoenderloo.
Van Gaal will unveil his pre-selection of 30 players for the June 13-July 13 World Cup in Brazil on May 13, with 23 making the final squad, to be announced on June 2.
20-strong training camp
Daley Blind (Ajax), Jean-Paul Boetius (Feyenoord), Luc Castaignos (FC Twente), Jasper Cillessen (Ajax), Jordy Clasie (Feyenoord), Memphis Depay (PSV), Daryl Janmaat (Feyenoord), Davy Klaassen (Ajax), Terence Kongolo (Feyenoord), JÃ¼rgen Locadia (PSV), Bruno Martins Indi (Feyenoord), Luciano Narsingh (PSV), Quincy Promes (FC Twente), Karim Rekik (PSV), Tonny Vilhena (Feyenoord), JoÃ«l Veltman (Ajax), Kenneth Vermeer (Ajax), Stefan de Vrij (Feyenoord), Georginio Wijnaldum (PSV), Jeroen Zoet (PSV)