Lions officially put Zenner on injured reserve
Coach Jim Caldwell said Monday the move was coming - Zenner was hospitalized with broken ribs and a partially collapsed lung after Detroit's win over Chicago on Sunday.
The Lions signed running back George Winn from their practice squad, released guard Taylor Boggs and signed running back Marion Grice and wide receiver Ryan Spadola to the practice squad. The Buffalo Bills signed tackle Jordan Mills off Detroit's practice squad.
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