Holloway (groin) will begin a rehab assignment with Triple-A Jacksonville on Saturday, Jordan McPherson of the Miami Herald reports.

Holloway was placed on the 10-day injured list May 22, but he's been throwing bullpen sessions recently. The right-hander is expected to throw 45-50 pitches during his first rehab outing, but the Marlins hope that he'll eventually be able to build up to 75-90 pitches so he can be an option to start once he's fully healthy, Christina De Nicola of MLB.com reports.

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