The NFL and players resumed their clandestine face-to-face negotiations on Tuesday on Maryland's eastern shore, the third such set of talks they've staged this month as the traditional opening of training camps draws closer. The sides are expected to continue to meet into Wednesday.The parties met for three days in suburban Chicago two weeks ago, in the days leading up to the June 3 injunction appeal hearing before the 8th U.S. Circuit Court of Appeals, and again last week for two days on Long Island, N.Y. Unlock HQ Video HQ video delivered by Akamai NFL owners have a one-day meeting scheduled in suburban Chicago next Tuesday, and they are planning to meet once a month until the situation is resolved. A memo went out to owners asking that they keep their schedules for next week flexible, in case the June 21 meeting spills into Tuesday night or even Wednesday.It's been 94 days since the NFL locked the players out, with this past Sunday marking three months. There are still 86 days until the 2011 NFL Kickoff on Thursday, Sept. 8 in Green Bay, but the league and players are working toward an agreement that would preserve training camps and the entire preseason.The league estimates that the cancellation of the preseason could cost it as much as $1 billion. Whether that figure is accurate or not, both parties recognize that the major economic losses that would be incurred by this dispute dragging through the summer would make negotiations exponentially tougher.Sources say internal deadlines to have some semblance of a "normal" preseason with the games preserved sit on or around July 15.To this point, labor committee members Jerry Richardson (Carolina Panthers), Robert Kraft (New England Patriots), John Mara (New York Giants), Jerry Jones (Dallas Cowboys), Art Rooney (Pittsburgh Steelers), Clark Hunt (Kansas City Chiefs) and Dean Spanos (San Diego Chargers), active players Mike Vrabel (Kansas City Chiefs), Tony Richardson (New York Jets), Domonique Foxworth (Baltimore Ravens) and Jeff Saturday (Indianapolis Colts), NFL Commissioner Roger Goodell, NFLPA executive director DeMaurice Smith and NFLPA president Kevin Mawae have taken part in the "secret" meetings.U.S. Magistrate Judge Arthur Boylan, who ran court-ordered mediation between the NFL and players in Minneapolis in April and May, also has been involved but is serving in a different capacity at these summits.