 Complete the following phrase:  He drove in a couple of CART races for Walker Racing in 1996 before a practice accident at the Emerson Fittipaldi Speedway in Rio de Janeiro, Brazil sidelined him for most of the season. In 1997 he moved to the Indy Racing League with Treadway Racing and the next year, he moved to Panther Racing, where he stayed for three seasons just losing out for the series title in 2000 to Buddy Lazier. He retired from his racing career after a crash with Sarah Fisher in the 