TALLAHASSEE, Fla. — New quarterback Tommy Castellanos led a punishing rushing attack for Florida State with 78 yards and a touchdown as the Seminoles stunned No. 8 Alabama 31-17 on Saturday, ending the Crimson Tide’s streak of 23 straight wins in season openers.

Coming off a 2-10 season, Florida State handed a crushing setback to Alabama, which was viewed as a College Football Playoff contender under second-year coach Kalen DeBoer.

Castellanos, a transfer from Boston College, made headlines over the summer after saying legendary Alabama coach Nick Saban wasn’t there to “save” the Tide versus Florida State in their Week 1 matchup and that the signal-caller didn’t “see them stopping me.”

He backed up that jab by spearheading FSU’s dominant ground attack while staying efficient through the air, finishing with 16 carries while no one else had more than seven rushing attempts for the Seminoles and completing 9 of 14 passes for 152 yards.

“It’s one of the reasons why I came here, for moments like these, for days like these,” Castellanos said after the game. “We got a long season ahead. Just take it one week at a time, keep grinding.”

Students and fans swarmed the field at Doak Campbell Stadium to celebrate the upset by the Seminoles, who closed as 13½-point underdogs at ESPN BET.

Under new offensive coordinator Gus Malzahn, who spent eight seasons as Auburn‘s head coach, Florida State was physical from the start, finishing with 230 rushing yards and averaging 4.7 yards per carry. The Noles averaged just 89.9 yards during their disastrous 2024 season.

“We’ve been training for this since January,” FSU linebacker Justin Cryer said. “What happened in that game was not a surprise to anybody in that room. Maybe to y’all. But not us.

“We’re not sending a message to the college football world. We’re not trying to make a big declaration. It’s all about day by day improvement and how we want to be better and keep moving forward.”

The Tide had not dropped a season opener since losing 20-17 to UCLA in 2001 under Dennis Franchione, and this defeat will ratchet up the pressure on DeBoer from the demanding Tuscaloosa faithful. Saban, who was DeBoer’s predecessor, led Alabama to six national titles.

DeBoer fell to 6-4 against unranked teams at Alabama; Saban went 124-4 in such games.

Alabama couldn’t solve Florida State’s defense, finishing with 87 rushing yards on 29 carries. FSU halted Bama three times on fourth down, the final time coming with 5:39 to go.

Florida State defeated its first ranked opponent since knocking off No. 19 Louisville in the 2023 Atlantic Coast Conference championship game.

“We wanted to be the aggressor,” Seminoles coach Mike Norvell said. “And we were. Our players, they rose to the challenge.”

Micahi Danzy, Caziah Holmes and Gavin Sawchuk also had rushing touchdowns for Florida State.

Ty Simpson completed 23 of 43 passes for 254 yards and two touchdowns in his Alabama debut. Germie Bernard led Alabama with eight catches for 146 yards.

The Associated Press and ESPN’s Andrea Adelson contributed to this report.