Los Angeles faces a 17-game stretch with no days off, and Roberts said a six-man rotation is a "very good possibility" with All-Star Alex Wood (SC joint inflammation) also slated to come off the DL in San Diego.
The three-time Cy Young Award winner pitched five innings on Saturday in his rehab start for Triple-A Oklahoma City, recording eight strikeouts. The Dodgers have fared well without Kershaw, going 23-7, owning the best record in the Majors at 91-38 and a 19-game lead in the National League West.
Kershaw is 15-2 with a 2.04 ERA in 21 starts this season, pacing the Majors in both wins and ERA.
Joshua Thornton is a reporter for MLB.com based in Los Angeles. This story was not subject to the approval of Major League Baseball or its clubs.