Dubon was diagnosed with left elbow discomfort after leaving Friday's game against Atlanta, Chandler Rome of the Houston Chronicle reports.
Dubon sustained the injury while attempting to make a catch at the outfield wall. He didn't start Friday but replaced Yordan Alvarez (illness) during the fifth inning and lined out in his lone plate appearance. X-rays on Dubon's elbow came back negative, per Rome, and he should be considered day-to-day.