Cook was waived by the Lions on Monday, Tim Twentyman of the Lions' official site reports.
Cook signed a reserve/future contract with the Lions in January but was unable to make it to training camp with the team. The 26-year-old spent the 2018 season on the Panthers' and Bengals' practice squads.
Cook signed a future/reserve contract with the Lions on Tuesday.
Cook was cut by the Raiders before the beginning of the regular season and spent time on the Panthers' and Bengals' practice squads since. For now, he is the third quarterback on the roster behind Matthew Stafford and Matt Cassel -- who will become a free agent this offseason.
The Bengals signed Cook to their practice squad Monday.
Cook's place on Cincinnati's practice squad comes following the release of fellow quarterback Christian Hackenberg. The 2016 sixth-round pick will attempt to show well during his time on the Bengals' practice squad, and hope to earn a depth role.
Cook was released from the Panthers' practice squad Tuesday.
Cook played one NFL game in his rookie season after being picked in the fourth round of the 2016 NFL Draft by the Raiders. A practice squad role is Cook's ceiling at this time.
Cook has joined Carolina's practice squad, Aaron Wilson of the Houston Chronicle reports.
Cook, who was waived by the Raiders on Saturday, is looking to earn a new home in Carolina. The 2016 fourth-rounder had an uninspiring preseason and hasn't shown much throughout limited action in his NFL career. The Panthers' backup quarterback position remains murky, so it's conceivable that the the team could elect to transition Cook towards a depth role.
Cook was waived by the Raiders on Saturday, Scott Bair of NBC Sports Bay Area reports.
Oakland parted ways with both Cook and EJ Manuel after trading for AJ McCarron on Saturday. It won't be too surprising if Cook, a 2016 fourth-round pick, draws a bit of interest around the league despite playing poorly this preseason.
Cook completed 11 of 19 pass attempts for 141 yards and one touchdown during Friday's preseason opener against the Lions.
Cook led the Raiders offense for five drives during the team's first preseason tilt, while three of those possessions ultimately resulted in scores. His impressive performance was highlighted by a seven-yard touchdown connection with slot receiver Ryan Switzer as the Silver and Black took a two-possession lead in the second quarter. Cook's productivity ultimately earned him second-team reps in Monday's practice, but he fell back to earth and struggled throughout the session, Michael Gehlken of the Las Vegas Review-Journal reports. Cook threw a handful of errant throws and muffed a red-zone snap, resulting in second-team reps for EJ Manuel at the end of practice. Consider the battle for Derek Carr's primary backup spot between Connor Cook and EJ Manuel still very much alive heading into the team's second preseason contest against the Rams on Saturday.
Cook appears to be the No. 3 quarterback entering training camp, Matt Kawahara of The San Francisco Chronicle reports.
Cook and fellow quarterback EJ Manuel are the two candidates for the backup quarterback slot behind starter Derek Carr. Manuel handled the No. 2 slot last year, earning two starts while Carr was injured along the way. The team will allow Cook and Manuel to compete in new coach Jon Gruden's offense, but Cook faces an uphill battle to win the job given Manuel's career experience.
Cook (coach's decision) is inactive for Sunday's game against the Chargers.
The third-string quarterback for the Raiders, Cook dressed for just one game this season with starter Derek Carr and EJ Manuel enjoying relatively sound health. The 24-year-old will likely have to battle for a roster spot in training camp next summer heading into his third NFL season.
Cook (coach's decision) is inactive for Sunday's game against the Titans.
Cook faced an uphill battle for the primary backup spot behind Derek Carr throughout the offseason, and the Raiders have elected to dress EJ Manuel in Week 1. Cook's inexperience certainly played a factor in the decision, while Manuel appeared in 28 games through four seasons with the Bills before heading to Oakland.
Cook completed nine of 16 pass attempts for 89 yards in Saturday's 24-20 preseason loss to the Cowboys. He also gained two yards on his lone carry.
While Cook wasn't incredibly productive in this extended run, it is noteworthy that EJ Manuel, who had worked ahead of him during the last preseason contest, attempted just four passes. It is quite possible that the position battle could continue into Thursday's preseason finale, where Cook and Manuel could both see reps ahead of the final roster decisions.
Cook worked behind fellow quarterbacks Derek Carr and EJ Manuel during Saturday's preseason loss to the Rams, completing nine of 15 passes for 83 yards and a touchdown.
Cook still has a decent chance at making the Raiders' final roster even if he remains behind Manuel in the competition to back up Carr. The second-year signal caller actually outperformed Manuel during the team's second preseason game, though Manuel may still retain an edge for the No. 2 role due to his superior NFL experience.
Cook completed 18 of 45 passes for 161 yards, one touchdown and three interceptions and was sacked three times in Oakland's 27-14 loss to Houston in their AFC wild-round playoff game Saturday.
Cook was in a tough spot, making his first career NFL start against the league's top-ranked defense, which led to predictable results. Oakland had just 203 yards of total offense and failed on 14 of 16 third-down attempts. The rookie was able to string together one good drive, but he missed targets all day and was hurt by some drops. The Raiders offense, so productive all season with Derek Carr steering, scored just 20 points in two games without him.
Coach Jack Del Rio confirmed Wednesday that Cook will start Saturday's AFC wild-card playoff game against the Texans, the San Jose Mercury News reports.
In the process, the 2016 fourth-rounder will become the first QB in the Super Bowl era to make his NFL starting debut in a playoff game. Cook is taking over for Matt McGloin, who started Week 17's game against the Broncos in place of the injured Derek Carr, but subsequently injured his left shoulder in that contest. Cook will square off against Brock Osweiler, who the Texans have re-installed as their No. 1 signal-caller. While it wouldn't surprise us to see Oakland run plenty Saturday, working in Cook's favor from a fantasy perspective is that he'll have a pair of reliable wideout targets at his disposal, Amari Cooper and Michael Crabtree.
Cook is on track to start Saturday's playoff opener against the Texans, Ian Rapoport of NFL.com reports.
The Raiders' top quarterback, Derek Carr (leg), will not be available this week, and backup quarterback Matt McGloin (shoulder) is not expected to play either, which leaves Cook in line to start the Raiders' first playoff game since 2002. Cook appeared in the first game of his NFL career in Week 17 in relief of an injured McGloin and held his own against a stiff Broncos pass defense, completing 14 of 21 passes for 150 yards while throwing one touchdown pass and one interception.
Cook completed 14 of 21 passes for 150 yards, with a touchdown and interception in Sunday's 24-6 loss at Denver. He also lost a fumble.
Cook took over for Matt McGloin, who suffered a first-half shoulder injury and did not return. It was the first meaningful action of the rookie's career, and he did manage to hook up with Amari Cooper on a 32-yard touchdown in the third quarter. Depending on the severity of McGloin's injury, Cook might have to start next week's playoff game for Oakland.
Cook (coach's decision) will be inactive for Sunday's game against the Titans.
Cook won't suit up Sunday as starter Derek Carr and backup Matt McGloin take over the duties at quarterback.
Cook racked up 101 yards on six completions during Thursday's exhibition loss to the Packers.
Cook also threw an unfortunate interception, bringing his passer rating down to 64.8. He was the Raiders' most productive quarterback, however, with starter Derek Carr throwing for just 38 yards on nine completions along with fellow backup Matt McGloin being almost non-existent with two passing yards on two completions. Cook, a 2016 fourth-rounder, could be in line to overtake McGloin as the No. 2 option on the depth chart if he continues to outplay the veteran this preseason.