Bills linebacker Christian Kirksey tells team he's retiring; A.J. Klein returns
A.J. Klein: Breaking News, Rumors & Highlights
NFL free agency grades 2020: Tom Brady aids Buccaneers, sinks Patriots
Ex-Bills LB's Wife Posts Emotional Message After Abrupt Retirement
Christian Kirksey: Breaking News, Rumors & Highlights
Dawson Knox misses second day of practice with back injury
Buffalo Bills sign Klein to practice squad as Kirksey intends to retire
Buffalo Bills re-sign linebacker A.J. Klein to one-year deal
PlayAction podcast: The Bills are having success spreading the ball around on offense