The Minnesota Vikings got some good news on backup running back/returner Lorenzo Booker, who left Saturday night's game because of a back injury.
An MRI revealed a disk that's out of place but, with treatment this week, Booker is expected to be ready for the regular-season opener at San Diego on Sept. 11.
Booker left the game after running a route and collapsing without contact. He won't play in Thursday's preseason finale against Houston.
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