Finland's Mikko Hirvonen will join eight times world rally champion Sebastien Loeb at Citroen for the next two seasons.
Hirvonen, who was Loeb's closest title rival this year, replaces Frenchman Sebastien Ogier who is expected to take the Finn's place at Ford.
Loeb and Hirvonen went into the final round of the championship in Britain this month just eight points apart, with the Frenchman leading.
When the 31-year-old Finn retired on the first full day in Wales, Loeb was handed his record eighth successive crown.
