Three days after the agreement was reached, Giants general manager Jerry Reese said on Saturday that lawyers for the two sides are still putting the final touches on the deal that will keep Manning with the Giants through 2015.
"There's no timetable," Reese said between practices at training camp at the University at Albany. "Hopefully, it will be done sooner than later."
Reese refused to comment when asked whether an issue about marketing Manning was holding up the contact, saying he never discusses what is in a contract.
Manning, who will earn $15.3 million annually under the deal, has refused to talk about his new contract until it is signed.
"Nothing new," he said twice before heading into the cafeteria for lunch.
Manning's big brother, quarterback Peyton Manning of the Indianapolis Colts, averages $14.17 million. The NFL's highest-paid player this season will be Carolina Panthers Pro Bowl defensive end Julius Peppers, who signed a one-year, $16.7 million deal earlier this year.