Driskel was 15 of 31 for 132 yards with no touchdowns and two interceptions during the preseason with 49ers.
This is the first time the team has carried three quarterbacks on the 53-man roster since 2010 with Carson Palmer, Jordan Palmer and Dan LeFevour.
To make room for him on the 53-man roster, the Bengals waived linebacker Paul Dawson, the team’s third-round pick last year. Dawson has practice-squad eligibility, so if he clears waivers the Bengals could add him to the practice squad as early as Monday.
Also today, the Bengals placed running back Cedric Peerman and first-round rookie cornerback William Jackson on Injured Reserve and re-signed cornerback Chykie Brown and offensive lineman Trey Hopkins.
By waiting until 4 p.m. today to make the IR moves, the Bengals are able to bring back either Peerman or Jackson with their lone designation-to-return tag. The team doesn’t have to announce which player it will be until that player is ready to practice again, which can be any time after Week 6.
The Bengals still have a vacancy on the 10-man practice squad after only signing nine players today. They are:
DE Ryan Brown (rookie, Mississippi State)
HB Tra Carson (rookie, Texas A&M)
DT David Dean (rookie, Virginia)
CB Darius Hillary (rookie, Wisconsin)
WR Jake Kumerow (first-year player, Wisconsin-Whitewater)
TE Matt Lengel (first-year player, Eastern Kentucky)
CB Tony McRae (rookie, North Carolina A&T)
G Alex Redmond (rookie, UCLA)
WR Alonzo Russell (rookie, Toledo)