Lee (illness) didn't participate in Wednesday's practice, BJ Kissel of the Chiefs' official site reports.
EDGE Analysis
This shouldn't be an issue as long as Lee can get back onto the field by Friday's practice. Regardless, the team's starting linebackers are fully healthy, so his absence would only hurt the depth, in which Dorian O'Daniel stands to be the main beneficiary if Lee is out for Sunday's game against the Packers.