Sep.11 (GMM) Nico Rosberg has refused to comment on whether he would like a new teammate at Williams in 2008.

The young German has been so impressive at the wheel of his Toyota-powered car this year that a dark cloud has descended over the prospects for 2008 of the current occupant of the other FW29; Alex Wurz.

Sir Frank Williams insisted at Monza that Rosberg is firmly under contract for next year, but refused to be moved on whether he intends to renew veteran Wurz's deal, after he has struggled this season compared with Rosberg, particularly in qualifying.

Wurz, 33, was then quoted as saying that he had agreed with Williams not to reveal anything about his chances for next year.

Rosberg toed a similar line, telling reporters that he did not "want to comment".

"All I can say," he added, "is that my cooperation with Alex has been really very good."