Braves place DeWitt on 15-day DL
DeWitt has lower back soreness, an injury that limited him to just 48 games last season between the major leagues and minor leagues in the Chicago Cubs' organization. He is 1 for 3 in four games for Atlanta after beginning the season with Gwinnett.
Carpenter was in uniform for Saturday night's game against the Pittsburgh Pirates after going 1-2 with a 4.76 ERA in four relief appearances with Gwinnett.
In 2011-12, Carpenter pitched in 67 games with Houston and Toronto. He was converted from a catcher to a pitcher in 2009 while in St. Louis' farm system.