On September 20, 2007, Bennett made his first career start and his first appearance with the Atlanta Braves.
Against the Milwaukee Brewers, Bennett went 5​²⁄₃ innings while striking out 8, earning the win.
On September 25, Bennett earned a win in relief against the Philadelphia Phillies.
He finished the season 2–1 with a 3.46 ERA.

In a relief appearance against the Arizona Diamondbacks on May 24, 2008, Bennett recorded his first major league hit in the fifth inning against pitcher Randy Johnson.

The Braves suspended Bennett's pay on June 25, 2009, the day after he fractured his hand with an angry punch to a clubhouse wall.
Bennett filed a grievance with the Major League Baseball Players Association (MLBPA) and continued his rehab assignment at Triple-A Gwinnett.
The MLBPA directed the Braves to either repay the suspended funds or grant him free agency.
He requested the Braves release him from his contract, and was granted his release on July 30.
On September 20, 2007, Bennett made his first career start and his first appearance with the Atlanta Braves. Against the Milwaukee Brewers, Bennett went 5​²⁄₃ innings while striking out 8, earning the win. On September 25, Bennett earned a win in relief against the Philadelphia Phillies. He finished the season 2–1 with a 3.46 ERA.
In a relief appearance against the Arizona Diamondbacks on May 24, 2008, Bennett recorded his first major league hit in the fifth inning against pitcher Randy Johnson.
The Braves suspended Bennett's pay on June 25, 2009, the day after he fractured his hand with an angry punch to a clubhouse wall. Bennett filed a grievance with the Major League Baseball Players Association (MLBPA) and continued his rehab assignment at Triple-A Gwinnett. The MLBPA directed the Braves to either repay the suspended funds or grant him free agency. He requested the Braves release him from his contract, and was granted his release on July 30.
Jeff Bennett (baseball)