Johnson will likely be out four-to-six weeks after suffering a herniated disc in his lower back during Wednesday's preseason win over the Raptors, Jeff Goodman of ESPN.com reports.

Johnson was expected to fill a reserve role in the Clippers' frontcourt throughout the early portion of his rookie campaign, but the injury will delay his regular season debut in the NBA for what could be a month of time or more. Blake Griffin, DeAndre Jordan, and Marreese Speights will continue to be the top big men, while Johnson's absence shouldn't have much fantasy relevance in terms of their production.

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