Robin van Persie suffered a groin injury in Holland's friendly win over Wales but both he and manager Louis van Gaal insisted the problem was not serious.
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Van Persie sparked fresh fears over his fitness ahead of the World Cup when he was withdrawn at half-time in the Dutch side's 2-0 victory at the Amsterdam Arena.
The Manchester United striker had been building his fitness up after a six-week lay-off towards the end of the domestic season with a knee injury.
But national boss Van Gaal and the player both insisted the substitution was precautionary.
Van Gaal said: "He has a little injury and I think it is better that you don't risk a bigger injury when he plays the second half.
"I think he made the right decision. It is not an important match. You don't have to risk it.
"His action to give the assist for the first goal was fantastic."
Asked if Van Persie should be fit for Holland's World Cup opener against Spain on June 13, Van Gaal said: "I hope so, and I think it is so."
Van Persie himself said: "I wouldn't call it an injury, I came off as a precaution.
"It built up during the came so decided it was sensible to come off."
The match was Holland's last before flying to Brazil for the World Cup and Van Gaal felt Wales had given his men a good test.
Holland won comfortably enough with goals from Arjen Robben and Jeremain Lens but Wales did frustrate them for large spells.
Much had been made of the absence of star Welsh names such as Gareth Bale and Aaron Ramsey but Chris Coleman's under-strength side did give a good account of themselves.
Van Gaal said: "I had expected that they would play with 10 men behind the ball. It is always difficult to score then, and they did it very well.
"When they had the ball they made the pitch very big so we could not press the ball. That is why it was good for us we played this match."
Holland's other main injury concern surrounds Swansea midfielder Jonathan de Guzman, who missed the game with a hamstring problem.
Van Gaal said: "He also has a little injury. Today he was scanned. It was not so heavy an injury so I take him with me to Brazil, but maybe he cannot play the first match."
Wales manager Chris Coleman was pleased with the performance of his side.
The visitors created few clear-cut chances but, well led by Liverpool's Joe Allen, they had good spells of possession and showed good movement.
Coleman said: "I don't like to lose, of course, and it is a defeat but there is a way in which you lose.
"I don't think we could have done much more as a group. I thought our lads really put the effort in.
"We were up against a very good international outfit, outstanding players and an extremely good manager with a lot of experience.
"We knew we were up against it, bearing in mind Holland have been together in camp for just over two weeks and our lads have had four training sessions in just over a month.
"I think our lads really showed a lot of courage and were brave. When you are playing against a team like that you can't stop every attack. They are good enough to open you up. They have got quality players.
"But we stayed strong and I am glad we gave them a test. It was a test for them before they go to the World Cup."