Running back Joe McKnight has ruptured his Achilles tendon, becoming the third Chiefs player to sustain the season-ending injury already this season.
McKnight sustained the injury in practice Thursday. Defensive tackle Mike DeVito and linebacker Derrick Johnson sustained the same injury in a Week 1 loss to Tennessee.
Kansas City plays the New England Patriots on Monday night.
McKnight has been plagued by injuries dating to his days at Southern California, and he never could stay healthy with the New York Jets. He spent last season out of the NFL entirely.
He seemed to be making the most of a second chance in Kansas City, though. McKnight caught six passes for 64 yards and a pair of touchdowns in a 34-15 win last Sunday in Miami.
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