![Buffalo Bills sign QB Josh Allen to 6-year extension; deal worth $258M with $150M guaranteed, sources say - ESPN Buffalo Bills sign QB Josh Allen to 6-year extension; deal worth $258M with $150M guaranteed, sources say - ESPN](https://a.espncdn.com/combiner/i?img=%2Fphoto%2F2021%2F0621%2Fr870405_1296x729_16%2D9.jpg)
Buffalo Bills sign QB Josh Allen to 6-year extension; deal worth $258M with $150M guaranteed, sources say - ESPN
![FILE - Buffalo Bills quarterback Josh Allen (17) throws a pass during the first half of an NFL divisional round playoff football game against the Kansas City Chiefs, Sunday, Jan. 23, 2022, FILE - Buffalo Bills quarterback Josh Allen (17) throws a pass during the first half of an NFL divisional round playoff football game against the Kansas City Chiefs, Sunday, Jan. 23, 2022,](https://c8.alamy.com/comp/2MBKYGY/file-buffalo-bills-quarterback-josh-allen-17-throws-a-pass-during-the-first-half-of-an-nfl-divisional-round-playoff-football-game-against-the-kansas-city-chiefs-sunday-jan-23-2022-in-kansas-city-mo-brian-dabolls-offseason-departure-leaves-bills-quarterback-josh-allen-working-under-a-new-coordinator-for-the-first-time-entering-his-fifth-season-in-buffalo-the-good-news-in-helping-ease-the-transition-is-allens-familiarity-with-dabolls-replacement-ken-dorsey-who-spent-the-past-three-seasons-as-the-bills-quarterbacks-coach-ap-photocharlie-riedel-file-2MBKYGY.jpg)
FILE - Buffalo Bills quarterback Josh Allen (17) throws a pass during the first half of an NFL divisional round playoff football game against the Kansas City Chiefs, Sunday, Jan. 23, 2022,
![Who is the Bills' backup quarterback? Buffalo's 2023 QB depth chart behind Josh Allen | Sporting News Who is the Bills' backup quarterback? Buffalo's 2023 QB depth chart behind Josh Allen | Sporting News](https://library.sportingnews.com/styles/twitter_card_120x120/s3/2022-11/Josh%20Allen%20Case%20Keenum%20110822.jpeg?itok=yIb3-vhf)