Negotiators for players and owners say there is no set deadline for an agreement to expand the playoffs to 10 teams this season. When players and owners signed their agreement for a new labor contract in November, the section covering the postseason established a March 1 goal for deciding whether the playoffs would increase by two teams for 2012 or 2013. But in recent days both sides said negotiations would continue beyond Thursday if they needed time. The sides spoke on condition of anonymity to The Associated Press because the talks have not been public.