The Reds optioned Robinson to Triple-A Louisville on Friday.
Robinson's first stint in the big leagues lasted without him making his MLB debut, as he went unused off the bench in Thursday's 4-2 loss to the Cubs before being sent back to Triple-A a day later. The 27-year-old will likely be at risk of being moved off the 40-man roster if the Reds need to clear room for another player at any point.