Fant was listed as a non-participant at Tuesday's walkthrough due to a knee injury, Curtis Crabtree of Fox 13 Seattle reports.
Fant presumably suffered the injury in the Seahawks' 21-13 loss to the 49ers on Thursday night. Tuesday's walkthrough was just an estimate, so more clarity on his status for Saturday's game against the Chiefs will come as the week progresses. Will Dissly would likely slide into the team's No. 1 tight end spot should Fant ultimately end up missing any time.