Renault says Formula One driver Robert Kubica has signed a contract extension, committing him to the team until 2012. The 25-year-old Pole is sixth in the 2010 championship standings after nine races of his first season with Renault. Team principal Eric Boullier said Wednesday that "there have been many rumors surrounding his future in recent weeks, which were a tribute to how well he has driven this year, and we are very happy to have agreed on a multiyear deal." http://sports.espn.go.com/rpm/racing/f1/news/story?id=5360168