Kershaw was initially pegged to start the Dodgers' season opener against the San Francisco Giants but landed on the 10-day IL with back stiffness after suffering an injury in the weight room.
"Clayton is champing at the bit," Roberts said of his eager southpaw.
The three-time NL Cy Young winner has remained effective on the mound, though not as dominant as he once was. In 2019, he went 16-5 with a 3.03 ERA in 178 1/3 innings.
Right-hander Walker Buehler will follow Kershaw in the rotation.