Mercedes GP boss Ross Brawn believes Michael Schumacher will be back on form in the Spanish Grand Prix following a disappointing race in Turkey.
"I am sure the last race wasn't very joyful, and that is what he was referring to," said Brawn of Schumacher's comments after the Istanbul race, where the German finished down in 12th position after contact with Vitaly Petrov.
"When you have a race like that as any driver it is going to knock you back a bit.
"But I think he is pretty resilient and I am optimistic this weekend he will be back where we want him."
Schumacher said after the Turkish Grand Prix he was not experiencing "big joy" at the moment, but Brawn warned not to read too much into that.
"That is definitely taking it too far," said Brawn when asked if Schumacher's comments meant he was not enjoying driving in F1.
"I have spoken to him since then. We had a lot of technical discussions and he was hassling about what we were doing about the car, what is coming along, what improvements we have got - so nothing has changed. We are optimistic."
Brawn also reckons it is small things that Schumacher need to work on to get back to his best form.
"It is just looking at the things that go wrong. They are quite small, and although they are all significant in Turkey until final qualifying he was incredibly strong but then he had some problems.
"So it is that last little bit that he needs to finish off. If he was slow from the beginning then you would be worried, but I am not worried because he is still very quick."