The National Basketball Players Association, saying the collective bargaining process has "completely broken down," served notice to the NBA on Monday that they plan to dissolve and pursue antitrust lawsuits against the league for the 137-day lockout.
"The players feel they're not prepared to accept any ultimatum," NBPA executive director Billy Hunter said. "We think it's extremely unfair to give (players the ultimatum) that they accept (the owners') proposal or roll back to 47%" from a 50-50 split of basketball-related income.

"We have negotiated in good faither for over two years," Hunter said. "But the players just felt they have given enough, that the NBA was not prepared to negotiate, that things were not going to get better."
NBA Commissioner David Stern had spent the weekend telegraphing to the players that the league intended to roll back to the 53-47 BRI percentage split and a hard cap if the players did not accept the last offer on the table, which came at the end of 23 hours of negotiations late last week.
"The proposal made by the NBA was regressive," Hunter said.
Stern, saying he was saddened and "terribly disappointed," refused to say the words "the season is over," but made it clear the outlook is not good.
"Frankly, by what I would say is an irresponsible action at this late date, Billy Hunter has decided to put the season in jeopardy and deprive his union members of an enormous payday," Stern said.
"It gets stranger and stranger. And I think the chance of the season slipping away from us, and the players losing all they have worked very hard to achieve … it's really a tragedy."
NBPA Derek Fisher said at Monday's meeting of the player representatives for the 30 teams, the vote was unanimous not to accept.
"After two years of making a genuine effort … we've come to the conclusion today that the process has not worked for us," Fisher said. "We decided this is the best decision for the players."
Stern had reiterated Sunday to USA TODAY that the proposal on the table was the best players would get and agreeing to the terms was the best shot to salvage a 72-game season.
"This is a proposal that does not call for a reduction on contract (no rollback), does not call for a hard cap, does not call for the absence of guaranteed contracts," Stern told USA TODAY, "and will see salaries go from over $5 million to between $7 million-$8 million during the length of the deal. We think it's a very fair deal for the players."
The players obviously disagreed.
•"We understand we may not have a season," NBA free agent Mo Evans said.
•"We're not gonna be Strong-Armed," New Jersey Nets player representative Anthony Morrow tweeted.
Some points of the league's offer:
• BRI is a giveback. Players got 57% in the last collective bargaining agreement. It averages to roughly $300 million a season, or $3 billion over the 10-year deal, from players to owners.
•An increased luxury tax. For the first $5 million over the threshold, a club will pay $1.50 for every $1 over. The tax increases for each $5 million over, up to $3.25 for every $1 over.
Clubs also face a stiffer tax for exceeding the luxury tax threshold more than three times in a five-year period.
This is a significant increase on the dollar-for-dollar tax from the last CBA.
• The NBA proposed a new set of mid-level exceptions. It would be $5 million annually either three or four years for non-taxpaying clubs. For taxpaying clubs, it would be $3 million annually for a max of three years and could be used every season.
Another midlevel was proposed, for a club near the tax threshold but fear going over, paying a tax and missing out on tax rebates paid to non-taxpaying teams. This exception would be $2.5 million annually for a max of two
This exception in the last CBA was $5.8 million annually, up to five years.
•Annual raises. The NBA proposed 6.5% for players with Bird rights — allowing a club to sign its free agents for more money and for more years than other clubs — and 3.5% for others, down from 10.5% and 8% in the last CBA but up from the offer on the table Wednesday.
•Contract lengths. Five years for Bird rights players and four years for others, down from six and five in the previous CBA.
•Sign-and-trade acquisitions for taxpaying clubs will be allowed only in the first two years.
•Extend and trades are prohibited.
•The minimum club payroll — the floor — will be 85% of the salary cap in the first two years of a new CBA and 90% after, up from 75%.
•Length of the CBA. The proposal is for 10 years with mutual opt-outs after the sixth year, which the union wanted in a new CBA and the league opposed.
•There will be option years available for players making less than the league average.
•A 12% reduction in the rookie wage scale and minimum salary.
The NBA presumably will scrub this offer and go back to the 53-47% split with a hard cap and no exceptions to it.