Tom Glavine has returned to the Atlanta Braves for one more season, reaching a preliminary agreement on a $1 million, one-year contract.

The deal is likely to be announced Friday, a person familiar with the negotiations said, speaking on condition of anonymity because the Braves had not yet confirmed it. It will contain $3.5 million in bonuses based on roster time.

"It's very close," Braves spokesman Brad Hainje said Thursday night. "They're going to talk again in the morning."

The left-hander, who turns 43 next month, was 2-4 with a 5.54 ERA in 13 starts last season, cut short by an elbow injury. Glavine's partially torn elbow tendon was repaired on Aug. 21 by Dr. James Andrews, who also cleaned up Glavine's shoulder.

A 305-game winner, Glavine spent his first 16 major league seasons with the Braves, winning the NL Cy Young Award in 1991 and 1998.

The 10-time All-Star pitched for the Mets from 2003-07 and earned his 300th win with New York in 2007 before returning to Atlanta for the 2008 season, when he made $8 million.

Glavine would earn a $1 million bonus when he is placed on the active roster and $1.25 million each for 30 and 90 days on the active roster. The Braves have the ability to defer the $2.5 million from the final two levels.

He is not expected to report to spring training until about March 1, instead continuing his rehab program in the Atlanta area.

AP Baseball Writer Ronald Blum contributed to this report.

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