Bills tight end Dawson Knox (88) catches a pass against the Kansas City Chiefs Sunday night.

How will Bills cover potential absence of TE Dawson Knox and his broken hand?

Breakout season by Dawson Knox interrupted by injury.

Titans wide receiver A.J. Brown (11) makes a catch as Buffalo Bills cornerback Levi Wallace (39) chases during the second half at Nissan Stadium.

Bills have much to ponder in week off after alarming loss at Tennessee

Bills ponder many reasons for troubling loss at Tennessee.

Bills running back Devin Singletary (26) runs for a first down during the first half against the Tennessee Titans at Nissan Stadium.

Bills defense exposed in 34-31 loss at Tennessee

Titans solve top-ranked Bills' defense in 34-31 win