Seattle, Washington - Confirming the worst fears the moment his injury happened Monday night, Seahawks safety Jamal Adams is expected to miss the rest of the season after suffering a knee/quad injury in Seattle’s 17-16 win over Denver that will require surgery.

The Seahawks officially placed Adams on injured reserve Thursday afternoon after it was revealed he would have surgery soon to repair a torn quad tendon, which is expected to sideline him for the rest of the season.

The exact details of when and where he will have surgery are still being sorted out.

Adams was injured early in the second quarter on a play when he blitzed Russell Wilson.

The 26-year-old was looked at in the medical tent before being carted off the sideline, and coach Pete Carroll after the game called it a "serious injury."

Carroll said Wednesday the athlete was still exploring treatment options and the team had not yet put him on injured reserve.

However, the decision has now been made to put him on IR.

With the open spot on the roster, the Seahawks have signed veteran defensive back Teez Tabor, who began his career as a cornerback but most recently has been a safety, off the practice squad of the Atlanta Falcons to take his place on the 53-man roster.

The 26-year-old was a second-round pick of the Lions in 2017 and is a veteran of 28 games with the Lions and Bears. He played in six games last year with the Bears when new Seahawks associate head coach for defense Sean Desai was the team’s defensive coordinator.

The news means that Adams will have played just 25 games in his first three seasons with the Seahawks after being acquired in July 2020 in a blockbuster deal with the New York Jets in which Seattle dealt its first-round picks in 2021 and 2022.

"It hurts because the guy is a great football player," defensive coordinator Clint Hurtt said Wednesday of Adams.

"I’ve said that before. It is definitely a shot, we don’t have a lot of guys like that, but we have so much confidence in Josh and Ryan and their ability. Ryan obviously proved to us last year that he can come out there to help us and do things. Josh has shown that too. It sucks, I hate it for Jamal, but at the same time for these guys, they can take advantage of the opportunity, and they have showed that they can do that."

Adams set an NFL record for defensive backs with 9.5 sacks in 2020 – since sacks became an official stat in 1982 – and was named to the Pro Bowl and to the AP All-Pro second team.