Rosberg set for Brawn switch

FORMULA ONE: German driver Nico Rosberg has announced he is to leave Williams at the end of the season, adding fuel to rumours he is about to swap places with Rubens Barrichello and drive for Brawn GP in 2010.<br /> <br /> The 24-year-old refused to comment on the rumours but speaking ahead of Sunday&rsquo;s season-ending Abu Dhabi Grand Prix, confirmed: &ldquo;It is my last race for Williams so it is a bit strange. I&rsquo;ve been with the team for five years and they are the only team I have worked with.&rdquo;<br />