Mercedes-Benz has confirmed that Ralf Schumacher will continue to race in the DTM in the 2010 season.
The German, who began his DTM career in 2008, will stay on at the front-line HWA team.
"It's great fun to race in the DTM; one of the most important reasons for this is the perfect cooperation with Mercedes-Benz and the HWA team. Therefore, I look forward to a third year in this fantastic championship," said Schumacher.
"At Mercedes-Benz and my team, I have the opportunity to practise motor racing at the best professional level.
"In 2010, the fans will experience a so far unique combination - my brother Michael in Formula 1 and me in the DTM, and both we will race for Mercedes-Benz - this will be an exciting motor sport season."
Schumacher has so far struggled to make an impression in the DTM, with a fifth place at Dijon last year his best finish to date.
Mercedes boss Norbert Haug is optimistic the German will continue to make progress this season.
"We all look very much forward to Ralf being a member of our DTM driver line-up again in 2010 and that he will enter his third season together with us," said Haug.
"Soon, Ralf became one of the favourites of the spectators of the series and I am sure that in 2010, after the necessary learning time - everybody needs in the DTM, he will further improve in sporting terms."