Holland's defensive line-up appears to be the only area of their World Cup side still to be decided by coach Marco van Basten.

The Oranje squad has played a series of practice games amongst themselves at their training camp in Switzerland, and van Basten seems to have settled on his favoured options in midfield and attack.

He has consistently partnered Ruud van Nistelrooy with Dirk Kuyt and Arjen Robben in a front three, and Mark van Bommel with Rafael van der Vaart and Phillip Cocu in midfield.

And although Edwin van der Sar seems assured of his place in goal, Van Basten admits he is still not sure who to play in front of him.

Jan Kromkamp, Joris Mathijsen, Andre Ooijer and Tim de Cler are the main defensive candidates so far but van Basten is waiting for his whole squad to recover full fitness and to give them all a run-out in their forthcoming friendlies.

"The core formation that I have in my head can, of course, change," he said.

"Kew Jaliens and Giovanni van Bronckhorst haven't trained yet so I can indeed make a switch (in defence).

"I would like to start with the 11 players that I will start with in Germany in all three upcoming practice games," he added.

"But I will make sure that all 23 players get their chance of playing against Cameroon, Mexico and Australia.

"Players can get in real good form, while others fall through the ice - that is why I want to see all players play in the three practice games."