Freese had appeared in 12 spring games, batting .267 with 2 home runs and 5 RBI.
Jackson was optioned off the Major League roster on March 17. He had appeared in 17 Grapefruit League games prior to that move. Freeman made two spring appearances, the most recent on Sunday, March 24.
Today's roster moves reduces the number of players on the Major League spring roster to 31. The team announced earlier this spring that pitcher Chris Carpenter and shortstop Rafael Furcal had been placed on the disabled list.