Danny Trevathan has a fracture just below his left knee joint and will miss six to eight weeks, the team announced Tuesday.

The third-year linebacker, who led the Denver Broncos with 124 tackles last season, is one of the most important players in defensive coordinator Jack Del Rio's scheme.

Trevathan, who had an MRI after he was carted off the field during Tuesday morning's practice, suffered a medial tibial impaction fracture. He will not undergo surgery.

"They told me that my ACL and MCL are fine, but that I have a fracture in my knee," Trevathan told ESPN's Josina Anderson. "The doctor told me I was going to be out four to eight weeks, but I told him four to six. I'm not tripping. I will bounce back. I'm a soldier."