MINNEAPOLIS — Carl Eller emerged from a 7-hour mediation session between the NFL and its locked-out players and let out a big sigh.

“Tough day,” he said.

When a Hall of Fame defensive end and one of the most feared players of his generation gives that kind of evaluation, it’s safe to say that the negotiations between the owners and the players aren’t getting any easier.

The two sides resumed their court-ordered talks on Tuesday after a three-day break, with no sign that an agreement is any closer. The lockout is in its second month and a federal judge is expected to decide soon on the players’ request to halt the NFL’s first work stoppage since 1987.

Dallas Cowboys owner Jerry Jones joined NFL Commissioner Roger Goodell, Atlanta Falcons President Rich McKay, Green Bay Packers CEO Mark Murphy and owners Pat Bowlen of Denver and Jerry Richardson of Carolina on the NFL side on Tuesday.

Named plaintiffs Ben Leber, Mike Vrabel and Eller represented the group of current, former and future players who are asking for the injunction on the lockout and have filed an antitrust lawsuit against the league.

All declined comment at the end of the long day of negotiation. The two sides will meet again on Wednesday morning in front of U.S. Magistrate Judge Arthur Boylan.

The talks are the latest step in the contentious fight over a new collective bargaining agreement. Sixteen days of mediated talks in Washington fell short, resulting in a class-action antitrust lawsuit filed by the players against the NFL and the owners’ decision to lock out the players after they disbanded their union.

U.S. District Judge Susan Richard Nelson said at a hearing on April 6 that she would rule “in a couple of weeks” on the players’ request to lift the lockout. Wednesday will be exactly two weeks from the hearing.