Jeremy Martin fractures his back

Honda's Jeremy Martin has broken a bone in his back after clashing with Justin Cooper at the Muddy Creek US 250 National. Martin, who had won the opener, was carried off in a neck brace and on a backboard and taken to the local hospital where it's been confirmed he

U.S. National highlights

Check out the highlights of the Muddy Creek U.S. Nationals in just five minutes! Your browser does not support iframes.