Bonilla isn't a candidate to start Friday's game against the Nationals and will instead serve as a long reliever for the big club, C. Trent Rosecrans of The Cincinnati Enquirer reports.

The Reds decided to designate fifth starter Asher Wojciechowski for assignment as part of a wave of transactions Sunday. Although Bonilla was called up from Triple-A Louisville in a corresponding move, his addition was made with replenishing the bullpen in mind. Bonilla previously made four starts for the big club, but his 7.43 ERA, 1.57 WHIP and 17:16 K:BB over 26.2 innings made manager Bryan Price reluctant to give him another trial in the rotation. Instead, it's likely that the Reds will call up one of Cody Reed or Robert Stephenson from Louisville to make a spot start Friday before Homer Bailey (elbow) is likely ready to join the rotation the following week.

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