Glenn Dorsey has been out since Week 3 with a calf injury but finally returned on Thursday night against the Chargers. Unfortunately for the Chiefs, he didn't last more than a half. Dorsey went down holding his leg and needed help from Chiefs personnel to get off the field.
It's not clear exactly what Dorsey's injury was other than it was to his calf. The Chiefs have not announced his status for the rest of the game.