Zambrano initially wanted a new deal in place by opening day. But talks about a multiyear contract stalled after it was announced the team was going to be sold. He is a free agent after this season.
After a slow start, Zambrano is 11-and-7 overall and six-and-two in his last eight starts since he got in a fight with former Cubs catcher Michael Barrett on June 1.
He acknowledged the pending sale of the team by Tribune Company has complicated negotiations. He says his agent talked with Cubs general manager Jim Hendry two days ago, but not to discuss a deal.
Zambrano says there is timetable to signing him. He says it is not a week or month, but is the end of the current season.