Eeles left Sunday's spring training game against the Tigers due to left shoulder discomfort, Matt Weyrich of The Baltimore Sun reports.
Eeles suffered the injury on a collision with teammate Enrique Bradfield in the outfield. Eeles is aiming to earn a bench spot on the big-league roster, so this injury certainly won't help his cause if it forces him to miss additional time. He can be considered day-to-day moving forward.