Ferrari has put the brakes on claims Felipe Massa could be at the wheel of the two-year-old F2007 as soon as this week.
The Italian team has already dismissed reports the plan is to fast-track the Brazilian's return ahead of his home race at Interlagos.
But Massa, 28, is keen to get back up to speed as soon as possible, arriving at Ferrari's Maranello factory on Monday with his personal trainer for simulator tests.
Following FIA approval, Ferrari also plans to give Massa some running on GP2 rubber in a privately-owned 2007 car at Fiorano, but in a statement the team said that will not happen "this week".
It "has not yet been decided when he will get into the car", Ferrari added.
Argentine signs conditional USF1 race deal
Williams sells team share to Toto Wolff
De la Rosa, Villeneuve, Summerton linked to USF1
WRC options emerge for Raikkonen
Sauber waits while FIA considers Toyota penalty
Still no deal for 2010 British GP - Ecclestone
Neel Jani to test Force India at Jerez
Persistent Schu/Merc rumours played down again
Mercedes GP in no hurry to replace Button
Button switched for less money and 'new challenge'
