RENTON, Wash. -- A day after coach Pete Carroll said Matt McCoy would be out indefinitely with a knee sprain, the Seattle Seahawks placed the injured linebacker on season-ending injured reserve Tuesday.
"Matt has come a long way and really helped us out this year," Carroll said. "We're going to miss him."
With the vacant spot on the active roster, the Seahawks brought up linebacker Jameson Konz from the practice squad and added him to the active roster. He was the team's seventh-round draft choice from a year ago.
Konz was initially drafted as a tight end but switched to defensive end during training camp this year and ultimately wound up being used as a linebacker. During preseason play, Konz saw plenty of time as a gunner on the punt team and also was used on kickoff coverage, and he likely will be used in a similar manner this week.
A native of Eugene, Ore., who starred at the University of Idaho, Vobora signed with Seattle during the team's training camp on Aug. 22, and he initially was on the Seahawks' 53-man roster during final cutdowns in September. But the Seahawks released Vobora when they signed four players off waivers a few days later.
Vobora, 25, has a similar skill set to McCoy's. He can play all three linebacker positions and was a special teams standout while with St. Louis for three seasons.
Tight end Fendi Onobun was released from the practice squad with an injury settlement, and the Seahawks added tight end John Nalbone in his place. Seattle still has an extra spot on the practice squad, so it conceivably could bring Williams back on the practice squad if he clears waivers.