The Brewers optioned Kelley to Triple-A Nashville on Tuesday.
Kelley and utility man Pablo Reyes were sent back to the minors to clear room on the 26-man active roster for starting pitcher Brandon Woodruff (hand) and second baseman Kolten Wong (calf), who were reinstated from the injured list ahead of Tuesday's series opener with the Rays. During his month-long stay with the Brewers, Kelley appeared in 13 games out of the bullpen and logged a 7.31 ERA and 1.31 WHIP across 16 innings.