Littell was recalled from the Twins' alternate training site Thursday, Brandon Warne of ZoneCoverage.com reports.
Littell was optioned Wednesday to make room for Rich Hill on the Twins' pitching staff, but he'll return to the 28-man roster after Lewis Thorpe was optioned to the alternate training site in a corresponding move. Littell had a rough season debut, but he's been effective since then, allowing just one run on four hits and three walks over four innings.