Fortson (elbow) wasn't activated from injured reserve Friday and won't play in Saturday's divisional-round matchup against the Jaguars, Field Yates of ESPN reports.
As expected, Fortson will miss a fourth straight game due to a subluxated elbow. He returned to practice this week and appears to be trending in the right direction, so the backup tight end could be available for a potential AFC Championship Game if Kansas City advances.