Adam Teicher ESPN Staff Writer
The Chiefs, who are down a starting guard and center because of injuries, signed veteran offensive lineman Jeff Allen. Allen played from the Chiefs from 2012 through 2015, when he started 36 games, mostly at guard. Allen, who played the past two seasons for the Houston Texans, can also play tackle. Starting guard Laurent Duvernay-Tardif is on the injured reserve lost with ankle and leg injuries. Center Mitch Morse has a concussion.