Chiefs placed S Kyle McCarthy (knee) on injured reserve, ending his season. McCarthy sustained the apparently serious knee injury during Saturday's practice. It's unclear if this knee injury is related to the one he sustained while with the Broncos in 2010. The former undrafted free agent out of Notre Dame was trying to crack the roster as a special teamer.

Chiefs S Kyle McCarthy was carted off the practice field Saturday and is believed to have a significant knee injury. McCarthy also suffered a major knee injury in 2010. "His knee doesn't look good," said coach Romeo Crennel. "We'll have to let the swelling go down and see where it leads us, but it's one of those things in football that happens."

Chiefs signed S Kyle McCarthy. Undrafted out of Notre Dame in 2010, McCarthy has recorded seven tackles in 12 games as a special teamer in Denver the past two seasons.

Broncos promoted S Kyle McCarthy from the practice squad. Waived just four days ago, McCarthy should see some snaps on special teams against the Patriots.

Broncos waived S Kyle McCarthy. Purely a special teamer, McCarthy recorded one tackle in two games since his late November promotion. The Broncos will go with Tony Carter instead.

Broncos promoted S Kyle McCarthy off the practice squad. A former undrafted free agent out of Notre Dame, McCarthy will see action only on special teams if he's active in any of the final five games.