Kelley was recalled from Triple-A Nashville on Friday.
Kelley will return to the majors after he was sent down Tuesday, replacing Adrian Houser (elbow) on the active roster after he was placed on the 15-day injured list. Kelley has produced an unimpressive 6.88 ERA and 1.29 ERA with 16 strikeouts over 17 innings in 14 appearances with the Brewers this season.