Ola John and Luciano Narsingh were included in Netherlands' squad for Wednesday's international friendly against England at Wembley.
FC Twente forward John and Heerenveen winger Narsingh have yet to make their Oranje bows but their inexperience has been complemented by the likes of veterans Mark van Bommel, Wesley Sneijder and Robin van Persie. Sneijder and Robben will be hoping to impress for the national team after difficult spells at domestic level.
Robben has recently been left out of the Bayern Munich side while Sneijder has been a part of an Inter line-up which has gone seven games without a win in all competitions.
Van Marwijk remains confident, however, that two proven performers will shine if called upon. "Fortunately form is something that comes back,'' he said. "Maybe Arjen wants to be happy and that also goes for Wesley. They should get back to basics, that will be for the best.''
Van Marwijk believes the youthful exuberance of John and Narsingh could cause England problems.
"Both boys are developing rapidly,'' he said. "They have proved they can play under pressure and find that good final pass.''
Squad: T Krul (Newcastle), M Stekelenburg (Roma), M Vorm (Swansea); K Boulahrouz (Stuttgart), J Bruma (Hamburg), J Heitinga (Everton), J Mathijsen (Malaga), E Pieters (PSV Eindhoven), R Vlaar (Feyenoord); M van Bommel (AC Milan), U Emanuelson (AC Milan), N de Jong (Man City), S Schaars (Sporting Lisbon), W Sneijder (Inter Milan), K Strootman (PSV), R van der Vaart (Tottenham), G Wijnaldum (PSV); K Huntelaar (Schalke), O John (FC Twente), L de Jong (FC Twente), D Kuyt (Liverpool), L Narsingh (Heerenveen), R van Persie (Arsenal), A Robben (Bayern Munich).© PA