Former Formula One driver Robert Doornbos has signed to drive for AC Milan in the new Superleague Formula due to begin later this year.

The six-race series gets under way at Donington Park at the end of August featuring 20 750-horsepower, V12 cars liveried in the colours of football teams from around the world.

A number of teams have already signed up, including Rangers, with organisers due to shortly confirm a Barclays Premier League club.

Doornbos, who drove for Minardi in 2005 and in three grands prix for Red Bull Racing in 2006, becomes the first high-profile driver to sign for a team.

The 25-year-old Dutchman, who won the rookie-of-the-year title in Champ Car last year after winning three races, said: "I've always been a huge AC Milan fan."