Waller (back/knee) remained sidelined at practice Friday, Tashan Reed of The Athletic reports.
Interim head coach Rich Bisaccia previously labeled the tight end as "week-to-week," so Waller's absence from a third consecutive practices come as little surprise. He's trending toward being officially ruled out for Sunday's game against Washington later Friday, and if that's the case, Foster Moreau will take on an expanded role at tight end.