Jamal Adams suffered a serious left knee injury Monday night and will need to work on it

In Seattle's season-opening 17-16 victory over the Denver Broncos, Adams was injured while blitzing former teammate Russell Wilson.

"He hurt his knee and he needs to work on it. I don't know the extent of it yet, but I know it's serious. He loves the game so much. We're going to miss him."

After delivering pressure and a hit on Wilson that helped force a third-down incompletion, Adams limped off the field in obvious pain, heavily favoring his left leg.

After being examined in the medical tent, he was assisted onto an injury cart. As Adams was being driven into the locker room, he appeared to burst out in frustration at one point.

Carroll described it postgame as a "serious" injury to Adams' quadriceps tendon, which attaches the quad to the kneecap.

During his first interview since suffering his latest finger injury, Adams said he feels "back in his element" with the Seattle Seahawks' new defense. It feels like I'm back playing defense."

In 2020, Adams became the highest-paid safety in the NFL after signing a four-year, $70 million extension.

In addition to Adams' injury, Seahawks coach Pete Carroll expects rookie running back Ken Walker III to return this week after undergoing a hernia operation.