Tottenham's boss is losing patience with the moody midfielder's constant complaining about being played out of position and being substituted during games.
Van der Vaart's latest moan came after he was asked to play on the wing for Spurs in Sunday's 2-1 win over Arsenal, in which he scored.
Redknapp snapped: "Yes, it does seem to be a problem. Rafa can't run back and chase the full-back. Against the better teams it is a problem.