Thanks to a breakthrough in negotiations between NFL's owners and players, the economics of a new collective bargaining agreement appear to be essentially complete. The sides arrived for Friday's negotiations with an eye on building off momentum gathered during Thursday's marathon session, which saw the two sides close in on an agreement for a rookie wage scale. The plan is for talks to continue to chip away at some of the remaining issues throughout the meeting Friday, then work via conference call over the weekend before owners and players reconvene for their scheduled mediation before U.S. Magistrate Judge Arthur Boylan in Minnesota on Tuesday, according to sources.