Which NFL teams must upgrade their linebacker units? Ranking all
Bills bring back Klein to practice squad as Kirksey retires
LB Christian Kirksey informs Bills he's retiring from NFL - ESPN
Bills beat Lions 28-25 for 2nd win in 5 days at Ford Field
Buffalo Bills' veteran option at middle linebacker retires; team brings
Bills LB Christian Kirksey To Retire
Bills' Christian Kirksey to Retire from NFL at Age 31; Drafted by
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Bills Day 3 draft targets
WR Beasley Comes Out of Retirement to Rejoin Buffalo Bills
Bills sign linebacker Klein to practice squad after Christian