The Jacksonville Jaguars could be without both starting cornerbacks against the Oakland Raiders. Veteran Alan Ball left practice early Thursday after injuring his groin. Fellow starter Dwayne Gratz already has been ruled out for at least three games with a badly sprained right ankle. Coach Gus Bradley says Ball injured the lower part of his groin muscle and might be able to play Sunday. If he can't, the Jaguars (0-1) likely would go with newly signed cornerback Will Blackmon on one side and rookie Demetrius McCray, a seventh-round draft pick, on the other. Source: Associated Press
