San Diego State Aztecs 2026 Preview: A Returning Quarterback and Elite Defense Fuel a Pac-12 Title Push
San Diego State authored one of the more dramatic reversals in the country in 2025, climbing from 3-9 to 9-4 (6-2 Mountain West) and carrying that momentum into a new home in the reconstituted Pac-12. The Aztecs went into the final weekend of the regular season with a shot at an outright league title before falling in overtime at New Mexico and dropping the New Mexico Bowl to North Texas.
The defining thread of the offseason is continuity at the game's most important position. For the first time in years, coach Sean Lewis (12-13 at the school, 36-44 overall across seven seasons) opens camp with a returning starting quarterback and a roster that added more in the transfer portal than it lost. Whether the offense can rise to meet a defense that ranked among the nation's best is the question that will define the season.
Offense
Senior Jayden Denegal returns for a second year as the starter, the first returning starting quarterback Lewis has had since Dustin Crum anchored his winning Kent State teams from 2019 through 2021. The Michigan transfer completed 143 of 243 throws for 1,807 yards with nine touchdowns and eight interceptions in 2025, numbers that leave obvious room to grow. He is healthy again after shoulder trouble limited his practice reps and required postseason surgery on his left, non-throwing shoulder. The consensus is that a meaningful jump from Denegal is the swing factor in whether this offense reaches its ceiling.
Jordan Napier headlines a receiving corps with more depth than the program has enjoyed in more than a decade. Coming off a 48-catch season, the junior is one of the most electric skill players in the new Pac-12 and a weapon in the return game as well. Fellow starter Jacob Bostick is back alongside him, though both wideouts are working their way back from reconstructive knee surgery. Senior Donovan Brown adds a proven veteran presence, and former backup quarterback Bert Emanuel Jr. has shifted to receiver to get his unique athleticism on the field; he flashed it with 170 rushing yards and two scores in a quarter and a half of the New Mexico Bowl. Junior Jackson Ford is the top tight end.
Lucky Sutton gives the Aztecs a genuine difference-maker. The senior rushed for nearly 1,300 yards and 10 touchdowns as the catalyst of the 2025 resurgence and rates among the top returning backs in the country. Colorado State transfer Javion Kinnard adds a receiving dimension out of the backfield and doubles as a punt-return option.
The line is the offense's biggest reconstruction project, with roughly three new starters to break in. Senior tackles Joseph Borjon and Dennis Jones provide size and experience on the edges, senior Kalan Ellis anchors the interior at guard, and Michael Leville Watkins works at center. Indiana transfer Evan Lawrence, regarded as the most highly rated of the program's 26 incoming transfers, brings championship pedigree and pushes for an immediate starting job. How quickly this group jells will go a long way toward determining Denegal's progress.
Defense
San Diego State's defense was elite in 2025, ranking sixth nationally in scoring at 15.4 points allowed per game and first in total defense, and the tradition of stout play should carry over even after heavy losses. The four-man front held opponents to just 3.7 yards per carry and surrendered only nine rushing touchdowns, among the fewest in the country. Returners Malachi Finau, Amari Comier and edge rusher Brady Nassar all logged significant snaps up front and form the backbone of the group. Oregon State transfer Kai Wallin, who worked into the Beavers' rotation last fall, joins the edge mix, as does Division II transfer Nate Henrich. Replacing edge Trey White, who left for Texas Tech, is the priority.
Senior Tano Letuli is the headliner and a candidate to be one of the league's top defensive playmakers, though he is coming back from reconstructive knee surgery. Weber State transfer Sione Hala projects as a productive running mate at the second level. The unit must also account for the departure of Owen Chambliss, who transferred to Nebraska.
The secondary is the most reworked area on the roster, tasked with replacing cornerback Chris Johnson, a first-round NFL pick. The Aztecs leaned on the portal to reload, adding Ohio transfer Jalen Thomeson, who posted 86 tackles, and Caleb Ricks, an FCS Freshman All-American from Idaho. There is uncertainty around veteran safety Dalesean Staley, viewed in some quarters as the lone returning starter in the group but reported elsewhere to have suffered a serious knee injury in the spring, so his status bears watching.
Kicking and punting have been a strength here for the better part of a decade, but both jobs turn over in 2026. The Aztecs graduated Gabriel Plascencia, the most accurate placekicker in school history, and lost punter Hunter Green to Washington. There is no clear consensus on the new placekicker, and that competition bears watching, while senior Tashi Dorje, who averaged 50 yards on a small sample of punts, is in line to handle the punting. The return game should again be a plus with Napier and Kinnard, both All-Mountain West returners a year ago.
Overview and Prediction
The schedule opens gently with Portland State before a September trip to UCLA offers an early measuring stick, and the new-look Pac-12 slate features Fresno State, Boise State and Colorado State among the marquee dates. With a defense that should remain among the conference's best and true difference-makers in Sutton and Napier, the pieces are in place for another strong year.
The preseason consensus slots San Diego State near the top of the new Pac-12, with a second-place projection and a realistic path back toward nine wins if the offense takes a step. The make-or-break is straightforward: Denegal must convert his experience into more consistent production behind a rebuilt line, and the defense must survive the loss of its three best players from a year ago. Get those answers right and the Aztecs will be in the Pac-12 title hunt deep into November.