Willi Weber, Michael Schumacher’s manager, has dismissed reports that a neck problem could stop him from a comeback.

Schumacher is set to race for Ferrari at the European GP in Valencia, in place of the injured Felipe Massa.

However, there are some concerns over the German's own fitness as he is still suffering from a neck injury.

"He's still not absolutely certain that his neck will hold up. His return depends on medical examinations which have yet to take place. Only after these tests will it be clear if he can drive," his spokeswoman Sabine Kehm told German agency SID.

Weber, though, is confident that Schumacher's return, which will come with its own memorabilia and merchandise, will go ahead.

"It is pure speculation that Michael will not race in Valencia," Weber told Frankfurter Allgemeine Zeitung. "We are preparing for the fact that he will be there."