ALAMEDA (CBS SF) — Oakland Raiders star rookie running back Josh Jacobs has taken to social media to reveal that over the last few days he has undergone leg surgery.

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Jacobs has had an outstanding rookie season, ranking eighth in the NFL with 1,150 rushing yards. But he has been sidelined the last three games with a fractured right shoulder not with an leg injury.

The twitter video — late Wednesday night — shows Jacobs being wheeled out on a hospital gurney and ends with a shot of a heavily bandaged left calf.

“Surgery went great fastest surgery ever,” he wrote. “This was random. I didn’t plan on even being here.

Raiders officials told Ian Rapoport of the NFL Network that Jacobs underwent the procedure “for a superficial skin infection.”

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Oakland still has a slim chance to earn a wildcard playoff spot with a win this weekend over the Denver Broncos.