Johnson, who leads major league pinch hitters with a .355 batting average and a .444 on-base percentage, is the third Atlanta outfielder currently on the DL.
Braves manager Fredi Gonzalez said Tuesday that center fielder B.J. Upton, sidelined by a right hip strain, is expected to begin a rehab assignment with Triple-A Gwinnett on Wednesday. Reserve outfielder Jordan Schafer, out with a bruised right ankle, could begin with Gwinnett as early as Saturday.
Atlanta purchased the contract of Todd Cunningham from Gwinnett to take Johnson's spot on the 25-man roster.
Cunningham hit .279 with 18 stolen bases in 19 games at Gwinnett.
Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.