The Cubs optioned Hollowell to Triple-A Iowa on Tuesday, Meghan Montemurro of the Chicago Tribune reports.
The Cubs recalled Hollowell from Triple-A Iowa on Monday, Sahadev Sharma of The Athletic reports.
The Cubs claimed Hollowell off waivers from Arizona on Friday and optioned him to Triple-A Iowa, Paul Sullivan of the Chicago Tribune reports.
The Diamondbacks designated Hollowell for assignment Tuesday, Alex Weiner of ArizonaSports.com reports.
The Diamondbacks optioned Hollowell to Triple-A Reno on Wednesday.
The Diamondbacks recalled Hollowell from Triple-A Reno on Tuesday.
Hollowell was claimed off waivers by the Diamondbacks and was optioned to Triple-A Reno.
Triple-A Albuquerque reinstated Hollowell (undisclosed) from its 7-day injured list Tuesday.
Triple-A Albuquerque placed Hollowell on its 7-day injured list April 13 with an unspecified injury.
The Rockies optioned Hollowell to Triple-A Albuquerque on Tuesday.