IRVING, Texas - The Dallas Cowboys have reached an agreement in principle with wide receiver Terrell Owens, two sources said Friday night. The sources said a formal announcement regarding the free-agent receiver is expected in the next few days. The sources also said Cowboys owner Jerry Jones and coach Bill Parcells are scheduled to return to Dallas today. Jones and club spokesman Rich Dalrymple could not be reached for comment. Owens’ agent, Drew Rosenhaus, could not be reached for comment. Owens, 32, spent two seasons with Philadelphia, scoring 20 touchdowns in 21 games before being deactivated for conduct detrimental to the team.