Flowers (hamstring) was not spotted at Thursday's practice, Brian Wacker of The Baltimore Sun reports.
Flowers sat out Wednesday's session and did the same a day later. The speedy wide receiver will be hard-pressed to suit up Sunday if he's unable to practice in at least some capacity Friday. Fellow wide receiver Ja'Kobi Lane (wrist) was placed on injured reserve Wednesday, so Rashod Bateman, Devontez Walker, Elijah Sarratt and LaJohntay Wester are the only healthy options in Baltimore's wide receiver room at the moment.