Freiermuth (hamstring) won't practice Tuesday, Dale Lolley of DKPittsburghSports.com reports.
The same applies to top back Najee Harris (foot) and wideout Chase Claypool (shoulder), with Lolley indicating that none of the injuries to Pittsburgh's key skill players are considered serious. Next up for tight end reps in Freiermuth's absence are Zach Gentry, Kevin Rader and Connor Heyward.