Pinder suffered a hyperextended left knee on Thursday when tracking down a ball out in center field. He remained in the game but was in visible discomfort when the injury originally happened.
Pinder went through some on-field work prior to Friday’s game against the Angels but he wasn’t able to effectively move around.
In four games this season, Pinder is 4-for-13 (.308 BA) with a home run.
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Barreto has been called up to provide depth in the infield, but he also has experience in the outfield and could help out if needed there too.