"His leg gave way underneath him. It doesn't look good," Van Basten was quoted as saying by BBC Sport after Saturday's 1-1 draw with Bulgaria.

The Liverpool striker was forced to leave the pitch in the 16th minute after collecting the injury in Sofia.

Robin van Persie was promoted to a deeper role up front and he managed to score to give Holland a 1-1 draw.

Kuyt, 26, joined Liverpool from Feyenoord in the summer and scored twice in six starts so far.