Rosberg thrilled at Schumacher return

Rosberg signed for Mercedes GP before it was clear who his team-mate would be, but has shown no signs of being worried about the prospect of going up against Schumacher.

"It is fantastic that Michael is returning to Formula 1 and will be my team-mate at Mercedes GP," said the German. "It's a great challenge for me to be up against one of the best drivers of all time.

"I'm sure that we will form a very strong partnership as he will have lost none of his speed. It is also great news for our sport and the fans."

Team principal Ross Brawn believes the combination of Schumacher and Rosberg provides Mercedes GP with everything it needs to add more success after its title double this year.

"I am delighted that we can confirm today that Michael will make his much-anticipated return to Formula 1 next year and drive for our Mercedes GP team," explained Brawn.

"As seven-time world champion, Michael's outstanding record in Formula 1 speaks for itself and I am looking forward to working with him again.

"With the completion of our driver line-up, I believe that we now have the most exciting partnership in Formula 1 with Michael and Nico, who provide the perfect mix of talent, experience, speed and youth.

"We can now turn our full attention to the preparations for the new season and everyone at Mercedes GP is extremely excited about the challenge ahead.

"With the investment and support in our team provided by Daimler, Aabar and our new title partner Petronas, and with two such exciting drivers, we have all of the building blocks in place to have another successful season in 2010."