Zimmermann (elbow) is scheduled to begin a rehab assignment with High-A Lakeland on Saturday.

EDGE Analysis

The right-hander has been on the 10-day injured list since April 26 and has encountered several setbacks throughout his rehab process. He had been expected to begin his assignment Wednesday, but he'll be back on the mound just a few days later than scheduled. Zimmermann amassed an ERA of 5.93 in six starts prior to his stint on the injured list, though some of those struggles could be linked to the injury.