Denver Broncos backup center Michael Deiter suffered a season-ending quad injury on Tuesday, coach Sean Payton confirmed after Wednesday's practice. Deiter will join defensive lineman Matt Henningsen ( Achilles ) on injured reserve.
So with Luke Wattenberg ( unknown ) and Alex Forsyth (unknown) already sidelined, Denver's down to versatile backup lineman Calvin Throckmorton and undrafted rookie Gavin Ortega at center. Other options who could fill in at the position include star guard Quinn Meinerz and fourth-round draft pick Kage Casey.
Elsewhere on the injury front, wide receiver Jaylen Waddle ( strain ), receiver Marvin Mims ( unknown ), offensive lineman Alex Palczewski ( unknown ), tight end Nate Adkins ( unknown ), outside linebacker Dasan McCullough (unknown) and linebacker Jordan Turner ( unknown ) worked on a side field with Wattenberg and Forsyth on Wednesday.
Denver coach Sean Payton noted after yesterday's practice that not every player on the side field is injured. Last week, wide receiver Courtland Sutton was given three-straight veteran rest days.
"Some of it is guys that are having a day where they're not participating, some of it may be they're just getting past an injury," Payton said. "There are probably a few reasons why."
Not spotted at practice on Wednesday were receiver Michael Bandy ( unknown ) and tight end Caleb Lohner ( knee )
Broncos injury report
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Season-ending injury: C Michael Deiter ( quad )
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Side field: WR Jaylen Waddle ( strain )
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Side field: WR Marvin Mims ( unknown )
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Side field: C Luke Wattenberg ( unknown )
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Side field: C Alex Forsyth (unknown)
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Side field: OL Alex Palczewski ( unknown )
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Side field: TE Nate Adkins ( unknown )
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Side field: LB Jordan Turner ( unknown )
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Side field: OLB Dasan McCullough (unknown)
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DNP: TE Caleb Lohner ( knee )
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DNP: WR Michael Bandy ( unknown )
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PUP : OL Nick Gargiulo ( knee )
Nick Gargiulo ( knee ) is currently on the physically unable to perform (PUP) list . He still counts against the 91-player roster limit.
The Broncos will travel to Atlanta on Thursday ahead of Friday's preseason game. They will be back on the practice field for Day 12 of training camp on Monday.
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This article originally appeared on Broncos Wire: Broncos offensive lineman suffers season-ending quad injury

