ARLINGTON, Texas — Texas Rangers owner Tom Hicks will enter into an exclusive negotiation for the sale of the team to a group headed by Pittsburgh sports attorney Chuck Greenberg that includes team president Nolan Ryan.

Hicks Sports Group said in a release Tuesday that Greenberg's group "primarily consists of Dallas-Fort Worth investors," including the family of Hicks, who would maintain a stake in the team under the proposal. Ryan would remain president of the team.

Greenberg's group and Hicks will work over the next 30 days to complete the transaction. It then will be forwarded to the commissioner's office and require approval by 75 percent or more of all owners.