ROME, Ga. (AP) - Keuchel, the 2015 AL Cy Young Award winner, struck out nine against Charleston in the South Atlantic League.
The 31-year-old Keuchel might make his Atlanta debut after one more minor league start.
Keuchel signed a one-year deal last week that pays him $13 million. The two-time All-Star went 12-11 with a 3.74 ERA in 34 starts last season for Houston.
Keuchel was scheduled to pitch Saturday for Triple-A Gwinnett against Durham, but the game was postponed because of the weather. The Braves have not announced plans for Keuchel's next start.