Chase Headley will not negotiate a long-term contract with the San Diego Padres during the season, the third baseman's agent confirmed Thursday.

The Padres have stated that general manager Josh Byrnes has clearance to sign Headley to a deal. The impasse could possibly lead to the Padres trading Headley, who will be eligible for free agency after the 2014 season.

Jim Murray, Headley's agent, claimed that the Padres were informed prior to this season that Headley would not discuss an extension once the year began -- and his intention is to stick with that stance.