Detroit ? The NFL Players Assn. is preparing to take the league to court if there is no immediate progress on a new contract. NFLPA executive director Gene Upshaw set March 9 as the date he will begin consulting players on legal action if no deal has been reached to extend the collective bargaining agreement. Upshaw said Thursday that the current stalemate was due more to a disagreement among the owners on revenue sharing than conflict between the league and the union. The current contract expires after the 2007 season, but it calls for an uncapped year in 2007.