Two weeks after a federal appeals court cleared Vikings defensive tackles Kevin and Pat Williams to play the 2009 season and sue the NFL in Hennepin County, the league is seeking to overturn the ruling. The NFL, which faced a Friday deadline to challenge the decision, asked the 8th Circuit Court of Appeals on Wednesday to give it until Oct. 9 to appeal the three-judge panel's ruling to the full court. The move means the league wants all 11 appellate judges on the 8th Circuit to decide the issue before considering an appeal to the U.S. Supreme Court. On Sept. 11, Judges Duane Benton, Bobby Shepherd and Diana Murphy ruled the Williamses could sue the NFL for allegedly violating Minnesota drug-testing laws in suspending them four games for testing positive for a banned substance. The panel rejected the NFL's argument that its collective bargaining agreement with the Players Association and U.S. labor law supersedes state statutes regulating how and when employers can test workers and professional athletes for drugs and alcohol.