Van Marwijk is facing a goalkeeping dilemma ahead of his side's World Cup qualifier with Scotland on Saturday week.
Maarten Stekelenburg has been dropped by Ajax, while understudy Henk Timmer has been told he can leave Feyenoord after a dismal season.
Out of Dutch: Van der Sar is finished with international football
Van der Sar, who has been one of the stars of Manchester United's
season, retired from international football after Euro 2008.
The 38-year-old accepted an emergency call-up for last year's World Cup qualifiers against Iceland and Norway but turned down this latest offer.
'Against my better judgment I called Edwin because of our present difficulties,' Van Marwijk told The Herald. 'We had agreed the book was closed before we had these injuries and while I knew what the answer would be, I still called him.
'All our other keepers have a story to tell, sickness, injury or poor form but I will stick by Stekelenburg.
'He has the most potential of all of them and is the best available. He is not playing for Ajax, and that is a disadvantage, but this gives him a chance to prove that he can come back stronger.'
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