Brian Iwuh suffers knee injury

BOURBONNAIS, Ill. -- Bears linebacker Brian Iwuh was carted off the field Tuesday after suffering a right knee injury. Iwuh appeared to fall backwards over a pile during a run play in a full team drill and immediately clutched his right knee.

Iwuh was scheduled to undergo an MRI on Tuesday night, according to a league source.

"Don't know how serious it is right now," Bears head coach Lovie Smith said earlier Tuesday. "He's done some good things. We need to get him back out there. He's been active and gotten our attention really since we signed him early on."

The Bears signed Iwuh after the linebacker turned heads during a mini-camp tryout in late May.

"He's athletic, [he has] quickness and is an ace special teams player," Smith said. "He's been active, knows how to get to the ball and has good instincts for a linebacker. He's not the biggest guy around [standing 6-foot, 239 pounds], but he fits the mold of what we look for in that weak side linebacker position."

Iwuh spent the previous four seasons in Jacksonville, earning the reputation as a standout special teams contributor. He recorded 17 special teams tackles last year and even started two games at linebacker for the Jaguars, who released Iwuh in April. Linebacker may be the Bears deepest position, and even though Iwuh is currently sixth or seventh on the depth chart, the team envisions him as a future four-phase contributor on special teams.

"He picked up the defense very well from what I understand talking to [Bears linebackers coach] Bob Babich," Bears special teams coach Dave Toub. "He's flying around on special teams and just plays hard. He's played special teams, he was Jacksonville's core guy last year."

"And then he got hurt today. It's a big setback."

Jeff Dickerson covers the Bears for ESPNChicago.com and ESPN 1000.