NFL QB Power Rankings: Where every QB ranks before the regular season

Shocking before and after photos of 15 NFL players who lost a ton of weight in retirement

Career record as starter: 183-52

2016 stats: 3554 yards, 67.4 completion %, 112.2 rating

2017 fantasy projection: 321.3 points

One thing to know: Last season saw Brady post his highest passer rating since 2007, the year he won his first MVP award and led the Patriots to a 16-0 record in the regular season.

Career record as starter: 90-45

2016 stats: 4428 yards, 65.7 completion %, 104.2 rating

2017 fantasy projection: 343.4 points

One thing to know: Rodgers led the Packers to six consecutive victories to close out last year's regular season, throwing 15 touchdown passes and zero interceptions over that stretch.

Career record as starter: 131-101

2016 stats: 5208 yards, 70.0 completion %, 101.7 rating

2017 fantasy projection: 305.9 points

One thing to know: Brees threw for over 5000 yards for the fifth time in his career last season. He's one of just five men in NFL history who have reached that single-season plateau, and the only one to do it more than once.

Career record as starter: 85-57

2016 stats: 4944 yards, 69.9 completion percentage, 117.1 rating

2017 fantasy projection: 302.7 points

One thing to know: Ryan had a season for the ages in 2016, posting the highest passer rating in the NFL and leading the Falcons to their first Super Bowl appearance in 18 years.

Career record as starter: 51-58

2016 stats: 4327 yards, 65.3 completion %, 93.3 rating

2017 fantasy projection: 265.9 points

One thing to know: Stafford topped 4000 passing yards for the sixth consecutive season in 2016, tied for the second-longest such streak in the league.

Career record as starter: 56-23-1

2016 stats: 4219 yards, 64.7 completion %, 92.6 rating

2017 fantasy projection: 294.3 points

One thing to know: Wilson will reportedly enter this season with a slimmer physique, which could help him regain some of the mobility he lacked in 2016.

Career record as starter: 19-21-1

2016 stats: 4917 yards, 67.0 completion %, 97.2 rating

2017 fantasy projection: 269.5 points

One thing to know: 2017 will be a contract year for Cousins. The Michigan State product was hit with the franchise tag in February, becoming the only quarterback in history to be tagged in consecutive years.

Career record as starter: 22-25

2016 stats: 3937 yards, 63.8 completion %, 96.7 rating

2017 fantasy projection: 262.1 points

One thing to know: Carr has shown steady improvement through his first three NFL seasons, taking the Raiders from a 3-13 record in 2014 to 12-4 and a playoff spot last year.

Career record as starter: 123-60

2016 stats: 3819 yards, 64.4 completion %, 95.4 rating

2017 fantasy projection: 262.4 points

One thing to know: This season could be Roethlisberger's last go-round as an NFL quarterback. In July, he expressed uncertainty about his future to the Pittsburgh Post-Gazette, citing his age, health and family commitments.

Career record as starter: 11-16

2016 stats: 3426 yards, 61.2 completion %, 95.6 rating

2017 fantasy projection: 271.5 points

One thing to know: On the verge of what could be a breakout year for the Titans, Mariota flaunted the team's wishes and slimmed down in pursuit of greater mobility.

Career record as starter: 13-3

2016 stats: 3667 yards, 67.8 completion %, 104.9 rating

2017 fantasy projection: 270.5 points

One thing to know: The Cowboys were one of the most run-heavy teams in the NFL last season, so running back Ezekiel Elliott's six-game suspension may force Prescott to take on an ever bigger role in Jason Garrett's offense.

Career record as starter: 97-79

2016 stats: 4386 yards, 60.4 completion %, 87.9 rating

2017 fantasy projection: 260.5 points

One thing to know: After finishing last season with his worst passer rating since 2007, Rivers looks ready for a rebound. He led the Chargers to three touchdowns during Sunday's preseason game against the Rams.

Career record as starter: 15-17

2016 stats: 4090 yards, 60.8 completion %, 86.1 rating

2017 fantasy projection: 279.3 points

One thing to know: The Buccaneers made major improvements to their receiving corps during the offseason, which should allow them to make the most of Winston's cannon for an arm.

Career record as starter: 43-27

2016 stats: 4240 yards, 63.5 completion %, 96.4 rating

2017 fantasy projection: 271.3 points

One thing to know: Luck enjoyed a strong comeback season in 2016, but he's already run into problems this year. Thanks to a slow recovery from offseason shoulder surgery, his status for the Colts' season opener is in doubt.

Career record as starter: 56-35-2

2016 stats: 4206 yards, 64.7 completion %, 91.8 rating

2017 fantasy projection: 259.2 points

One thing to know: The Bengals have made five postseason appearances since Dalton took over quarterback duties in 2011, but they haven't won a playoff game since 1990.

Career record as starter: 108-91

2016 stats: 4027 yards, 63.0 completion %, 86.0 rating

2017 fantasy projection: 243.0 points

One thing to know: Manning has started 199 consecutive regular season games for the Giants, the longest active streak in the NFL.

Career record as starter: 51-40-1

2016 stats: 3509 yards, 52.9 completion %, 75.8 rating

2017 fantasy projection: 282.6 points

One thing to know: After a disappointing follow-up to his 2015 MVP-winning campaign, many analysts suggested that Newton should pass more and throw less, but the Auburn product recently reaffirmed his love for the run game.

Career record as starter: 32-45-1

2016 stats: 3877 yards, 71.6 completion %, 99.3 rating

2017 fantasy projection: 217.6 points

One thing to know: Bradford set a new NFL record for single-season completion percentage last year, finding a receiver on over 70 percent of his attempts.

Career record as starter: 83-55

2016 stats: 4317 yards, 64.9 completion %, 83.5 rating

2017 fantasy projection: 229.6 points

One thing to know: Although he's been sidelined with a back injury for much of the summer, Ravens head coach John Harbaugh promised that Flacco will be ready in time for the team's season opener against Cincinnati.

Career record as starter: 79-56-1

2016 stats: 3502 yards, 67.1 completion %, 91.2 rating

2017 fantasy projection: 223.0 points

One thing to know: Smith has become a poster child for the NFL's recent emphasis on short, strategic passes, posting a 64.5 completion percentage while leading the Chiefs to 11 wins in three of his four seasons in Kansas City.

Career record as starter: 89-84-1

2016 stats: 4233 yards, 61.0 completion %, 87.2 rating

2017 fantasy projection: 236.1 points

One thing to know: The 37 year old is coming off of a down year, experiencing dips in passing yards, completion percentage and passer rating. The result was Palmer's first losing record since his days with the Oakland Raiders.

Career record as starter: 7-9

2016 stats: 3782 yards, 62.4 completion %, 79.3 rating

2017 fantasy projection: 239.6 points

One thing to know: After fading down the stretch in 2016, Wentz did his offseason training in California and delved deep into the Eagles' playbook in hopes of more consistent results in his sophomore season.

Career record as starter: 14-14

2016 stats: 3023 yards, 61.7 completion %, 89.7 rating

2017 fantasy projection: 259.3 points

One thing to know: Taylor was placed in concussion protocol after being sacked during Saturday's preseason game against the Ravens. It is unclear whether he will return in time for the Bills' season opener.

Career record as starter: 68-71

2016 stats: 1059 yards, 59.1 completion %, 78.1 rating

2017 fantasy projection: 205.7 points

One thing to know: Cutler was all set to spend this fall as an on-air analyst for Fox, but an injury to Dolphins incumbent Ryan Tannehill and a $10 million deal were enough to lure him back to the NFL. His chemistry with his new receivers will play a big role in his success this year.

Career record as starter: 11-34

2016 stats: 3905 yards, 58.9 completion %, 78.8 rating

2017 fantasy projection: 198.1 points

One thing to know: Despite starting every one of Jacksonville's games between 2015 and 2016, Bortles had to earn the starting role over veteran Chad Henne this preseason.

Career record as starter: 8-6

2016 stats: 3401 yards, 59.5 completion %, 84.6 rating

2017 fantasy projection: 177.6 points

One thing to know: Siemian won the Broncos starting job for the second consecutive season, beating out 23-year-old Paxton Lynch, who was hand-picked by John Elway in the 2016 draft.

Career record as starter: 16-15

2016 stats: 1445 yards, 67.0 completion %, 98.0 rating

2017 fantasy projection: 173.8 points

One thing to know: Hoyer is coming off of a solid season with the Bears, but he should expect heavy scrutiny this season. The 49ers signed him as a free agent to replace the still-unemployed Colin Kaepernick under center.

Career record as starter: 0-7

2016 stats: 1089 yards, 54.6 completion %, 63.6 rating

2017 fantasy projection: 178.2 points

One thing to know: Goff, the first overall pick in 2016, has continued to struggle this year, committing two turnovers during the Rams' preseason game against the Raiders.

Career record as starter: 5-13

2016 stats: 75 yards, 90.9 completion %, 125.4 rating (11 attempts)

2017 fantasy projection: 155.8 points

One thing to know: Glennon may not hold on to the starting job for long. Mitchell Trubisky, the second overall pick in this year's draft, has flashed some serious potential in the preseason.

Career record as starter: N/A

2016 stats: N/A

2017 fantasy projection: 157.8 points

One thing to know: Kizer, a rookie, was a second round pick in this year's draft. He won the starting job over Brock Osweiler, who's set to make $16 million this season.

Career record as starter: 1-1

2016 stats: 461 yards, 63.0 completion %, 80.9 rating

2017 fantasy projection: 85.2 points

One thing to know: Savage started three games for the Texans last season, but with 12th overall pick Deshaun Watson waiting in the wings, it's only a matter of time before he returns to the bench.

Career record as starter: 18-42

2016 stats: 1100 yards, 54.5 completion %, 72.3 rating

2017 fantasy projection: 139.2 points

One thing to know: The Jets will be McCown's eighth NFL team. In 22 games started over the past three years, he's gone 2-20.