Sir Frank Williams has expressed his displeasure at Nico Hulkenberg's manager's recent revelation that he plans to secure his client a move to Ferrari in 2013.
Hulkenberg, 22, is considered one of the brightest young prospects in F1 and Williams is in no doubt that the German driver can achieve great things in the sport.
"Nico is our big star," he said. "He has won every other series that he has done, and the only other driver to have done this is Lewis Hamilton. That says everything."
However, Williams is fuming that Hulkenberg's manager, Wili Weber, has made no secret of his desire to engineer a move to the Scuderia for the starlet.
"It is up to me that they (Ferrari) don't snatch him away," Williams said. "I found it very unprofessional that Weber is saying he (Hulkenberg) will be with Ferrari in 2013.
"Anyway, I hope Nico is with us for a very long time. I have put an experienced driver - Rubens - by his side, so that he can learn as much as possible."