Mercedes set to announce Rosberg for 2010

(GMM) Mercedes GP is expected to confirm Nico Rosberg as a race driver for the 2010 season in just over one hour (See related rumor).

It is regarded as an open secret that the 24-year-old German, who made his debut for Williams in 2006, inked a contract to race with the Brackley based team some time ago.

"After four years in formula one, I would count Nico Rosberg as an experienced driver," team boss Ross Brawn told Germany's Bild.

It is also believed that, over the weekend, Rosberg gave an interview in which he hinted strongly that his 2010 employer will be Brawn/Mercedes.

Briton Brawn, 55, said he is not in a rush to complete the team's lineup, following Jenson Button's defection to McLaren.