Bumgarner's MRI on Thursday revealed left shoulder inflammation, Nick Piecoro of The Arizona Republic reports.

Bumgarner will be shut down from throwing for a few days, but manager Torey Lovullo is optimistic that the southpaw isn't facing a lengthy absence, and the skipper said the 31-year-old could avoid a trip to the injured list. The left-hander had been dealing with shoulder discomfort over the past couple weeks, but the issue doesn't appear to be a significant concern for now. However, it's not yet clear when Bumgarner could return to the mound.

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