The Yankees' repeated efforts to fortify the bullpen this offseason didn't take a holiday. They shipped Manny Banuelos, once a top-30 pitching prospect, to the Braves on Thursday for relievers David Carpenter and Chasen Shreve.

Banuelos' star had faded some since he lost the entire 2013 season to Tommy John surgery, and the Yankees apparently felt the need to cash in on that remaining potential to give the bullpen an immediate boost.

The 23-year-old lefthander was 2-3 with a 4.11 ERA in 26 games in three minor-league stops last year, with 71 strikeouts in 762/3 innings.

Carpenter, 29, seems like the ready replacement for Shawn Kelley, whom the Yankees traded to the Padres on Monday. The righthander is a year younger and is in the first year of arbitration. Carpenter was 6-4 with a 3.54 ERA in 65 appearances last season for the Braves and averaged 9.9 strikeouts per nine innings.

Shreve, 24, would join Andrew Miller and Justin Wilson as lefthanded relief options for Joe Girardi. Shreve split last season between Double-A and Triple-A, where he combined for a 5-3 record and 2.67 ERA with 12.2 strikeouts per nine innings. In 15 appearances for the Braves, Shreve had a 0.73 ERA and 15 strikeouts in 121/3 innings.