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Joining in, NFL spokesman Greg Aiello tweeted: “When is union going to respond to our 150 pages of draft CBA provisions that they received eight days ago. Waiting.”

Smith also tweeted that he would inform the players where things stand at 2 p.m. EST Friday, saying “Players stay strong! Stay informed.”

The NFL hasn’t lost games to a work stoppage since 1987, when a strike shortened the season and some games included nonunion replacement players. The foundation of the current CBA was reached in 1993 by then-Commissioner Paul Tagliabue and union chief Gene Upshaw. It has been extended five times as annual revenues soared above $9 billion, the league expanded to 32 teams, and new stadiums were built.

The 2006 contract extension was the final major act for Tagliabue, who then retired, succeeded by Goodell. An opt-out clause for each side was included in that deal, and the owners exercised it in May 2008 — three months before Upshaw died. Smith replaced Upshaw in March 2009.

Two months later, Smith wrote Goodell a letter, asking for detailed financial statements from each of the 32 teams and the league as a whole. The NFL offered to turn over other economic data this week, and the NFLPA rejected that proposal, saying the investment bank advising the union determined the information would be “utterly meaningless” during the negotiations.

The NFL, meanwhile, said the union was offered unprecedented financial data, including some the league doesn’t share with clubs.

Pash indicated there hadn’t been movement on that issue Thursday.

The dispute centers on money: how to divide the billions in revenues, how much of that should go to owners off the top to cover certain costs, and the union’s demand for what it calls “financial transparency.”

Under the old CBA, owners received an immediate $1 billion to go toward operating expenses before splitting remaining revenues with players. Owners initially tried to add another $1 billion to that, and while they have lowered the up-front figure they want — at least down to an additional $800 million — Smith said it is still too much.

The labor committee members present Thursday were Jerry Richardson of the Panthers, Pat Bowlen of the Broncos, Jerry Jones of the Cowboys, John Mara of the Giants, Art Rooney II of the Steelers, Clark Hunt of the Chiefs, Mark Murphy of the Packers, Dean Spanos of the Chargers and Mike Brown of the Bengals. Eagles president Joe Banner and Redskins general manager Bruce Allen also were there.

While Mara, Hunt and Murphy occasionally participated in the talks, a group this large attended only one previous session, last week.

The only missing member of the key league group was Patriots owner Robert Kraft, part of a delegation visiting Israel with Massachusetts Gov. Deval Patrick. Asked Thursday whether he expects next season to start on time, Kraft said: “That’s my belief.”

There have been various issues discussed during negotiations, including the owners’ push to increase the regular season from 16 games to 18; a rookie wage scale; and benefits for retired players.

But the rift is mainly about revenues.

And the acrimony — temporarily tamped down at federal mediator George Cohen’s insistence when he began overseeing the talks — was out there for everyone to see Thursday night.

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