The Dodgers optioned Robinson to Triple-A Oklahoma City on Saturday.
Robinson had been working as Los Angeles' No. 2 catcher since Will Smith (neck) landed on the IL in mid-June, but he's struggled as a hitter, going just 2-for-23 with no extra-base hits over eight contests. As such, Robinson will head back to Triple-A, and Eliezer Alfonzo will get his first taste of the majors.