The Packers often kept three quarterbacks on the initial 53-man roster under Mike McCarthy, but that shouldn’t be the case this season.
In 2014 — a year after Aaron Rodgers first broke his collarbone — they kept three quarterbacks, with Matt Flynn and Scott Tolzien joining Rodgers on the final 53-man roster. The following season, Tolzien was the main backup with rookie Brett Hundley as the number three QB. And in 2016, the Packers started the year with Rodgers, Hundley and Joe Callahan.
They went back to keeping two QBs in 2017, but Brian Gutekunst decided to go back to three last summer with DeShone Kizer and Tim Boyle both making the roster.