No role at Mercedes GP for Ralf Schumacher
With his older brother Michael returning from retirement to be Nico Rosberg's teammate, it has been reported that 34-year-old Ralf is also keen to return to the premier category.
For the past two years, 6-time GP winner Schumacher has driven for Mercedes in the German touring car series DTM, after losing his Toyota seat at the end of 2007.
It is also rumored that David Coulthard could replace Ralf in DTM this year.
Mercedes GP is yet to name a full-time reserve driver for 2010, and Daimler and Mercedes chief executive Zetsche was asked by La Gazzetta dello Sport if there is room at the Brackley based team for another Schumacher.
"He (Ralf) is already our driver in another series. To have one Schumacher in the (F1) team, especially if it is Michael, is more than enough," Zetsche told the Italian sports daily at the Detroit Motor Show.