Vikings running back Adrian Peterson missed another practice on Thursday with an ankle injury. Peterson injured the ankle against the Oakland Raiders in Week 11 and was not able to play against the Atlanta Falcons last Sunday. His status for Minnesota's game against the Broncos may not be known until Saturday.

Other updates from Minnesota's Thursday injury report: linebacker Erin Henderson, safety Jamarca Sanford and tight end Visanthe Shiancoe fully participated in practice. Cornerback Asher Allen, guard Anthony Herrera and tight end Kyle Rudolph were limited. Linebacker E.J. Henderson did not participate, and cornerback Chris Cook is out for Sunday's game.

Defensive end Jared Allen skipped practice while dealing with a "personal family matter," head coach Leslie Frazier said.

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