Washington (AP)—The NFL has filed an unfair labor practice charge against its players’ union with the National Labor Relations Board.

The league’s filing says the union “consistently has failed to confer in good faith” during negotiations for a new contract and the union’s “conduct amounts to surface bargaining and an anticipatory refusal to bargain.”

A statement e-mailed to The Associated Press by union spokesman George Atallah on Monday says the NFL’s “claim has absolutely no merit.”

The NLRB is a federal agency that enforces the nation’s labor laws and referees labor-management disputes.

The current collective bargaining agreement expires on March 3. The NFL Players Association has said it expects the owners to lock out players; the NFL’s filing with the NLRB says that the union wants to “run out the clock” and, essentially, avoid reaching a new CBA so it can decertify and file an antitrust lawsuit.

Players already have voted, team-by-team, to authorize decertifying their union if a new CBA isn’t reached by the deadline.

The NFLPA already decertified in 1989, then returned as a union in 1993, when a contract was reached with the league that provided for free agency. That landmark CBA was renewed or restructured several times since 1993, including in 2006. The owners opted out of that most recent deal in 2008.

The NFL says in the filing with the NLRB that during current negotiations, the union delayed the scheduling of bargaining sessions; failed to “respond in a timely and/or meaningful manner” to owners’ contract proposals; and insisted on “disclosure of financial data to which the NFLPA has no legal right and then suspending negotiations unless and until such data is produced.”

The league’s filing also accuses the NFLPA of “engaging in other actions demonstrating that the union has approached these negotiations with no intent to reach agreement through good faith collective bargaining.”

Atallah’s e-mailed statement said: “The players didn’t walk out and the players can’t lock out. Players want a fair, new and long-term deal. We have offered proposals and solutions on every issue the owners have raised.”

The biggest issue separating the sides is how to divide about $9 billion in annual revenues; under the old deal, the owners receive $1 billion off the top, and they want to increase that to $2 billion before players get their share.