Decker said he is dealing with a minor oblique injury but was able run and throw without a hitch Monday, Susan Slusser of the San Francisco Chronicle reports.

Decker joined the A's camp as a non-roster invitee looking to claim a major league roster spot as the team's fifth outfielder, something that is within reach with Jake Smolinski sidelined for the start of the season. It's unclear how much longer this injury will sideline him, but the 27-year-old could be in jeopardy of missing the Opening Day cut if he isn't able to return to the field shortly.

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