Herget (shoulder) will begin a rehab assignment at Double-A Rocket City on Friday, Sam Blum of The Athletic reports.
Herget began throwing bullpens last week and has been cleared to return to game action with the Double-A club. The right-hander has been on the injured list for a month due to a shoulder injury and a setback in late June, so it's possible that he'll require multiple rehab appearances prior to rejoining the Angels.