The Brewers outrighted Roller to Triple-A Nashville on Thursday.
The Brewers designated Roller for assignment Saturday.
The Brewers optioned Roller to Triple-A Nashville on Monday.
The Brewers recalled Roller from Triple-A Nashville on Wednesday.
Triple-A Nashville reinstated Roller (undisclosed) from its 7-day injured list Wednesday.
Triple-A Nashville placed Roller on its 7-day injured list April 21 with an unspecified injury.
Milwaukee optioned Roller to Triple-A Nashville on Sunday, Curt Hogg of the Milwaukee Journal Sentinel reports.
The Brewers selected Roller's contract from Triple-A Nashville on Monday, Curt Hogg of the Milwaukee Journal Sentinel reports.
Milwaukee acquired Roller from the Guardians on Thursday in exchange for cash considerations, Adam McCalvy of MLB.com reports.