DALLAS (AP) — SMU had its chances in the first quarter to jump out on its old conference foe.
The Mustangs, however, failed to take advantage of Texas A&M's sputtering offense in the first quarter. And once the Aggies started clicking, freshman quarterback Johnny Manziel made sure the Mustangs didn't have a chance after that.
Manziel accounted for 418 total yards and six touchdowns in three quarters as Texas A&M beat SMU 48-3 Saturday.
Manziel threw for four touchdowns and a school-freshman-record 294 yards. He also had 13 carries for 124 yards and a pair of a scoring runs.
"We came out physical and fast," SMU linebacker Taylor Reed said. "Unfortunately, we ran out of gas toward the end."
The Aggies punted three times in the first quarter and failed on fourth-and-2 from the SMU 34.
The Mustangs then got a break early in the second quarter when Texas A&M's Taylor Bertolet missed a 23-yard field goal.
"If we had answered anything when the defense stopped them, I think everybody would have rallied up," Mustangs coach June Jones said. "We just couldn't convert anything."
SMU (1-2) suffered its most lopsided home loss since 2002, when it dropped a 52-6 contest to Oklahoma State.
Texas A&M (1-1) racked up 605 yards in offense and bounced back after losing its Southeastern Conference opener to No. 18 Florida.
Last weekend, Manziel became the Aggies' first freshman starting quarterback in an opener since 1944. He finished that game with 173 yards passing and 60 more on the ground.
Manziel improved on that performance by completing 20 of 36 passes and leading the Aggies to six touchdowns in the second and third quarters before backup Jameill Showers replaced him in the fourth.
In addition to two rushing touchdowns, the dual-threat quarterback kept several other plays alive with his legs.
About the only thing Manziel didn't do Saturday was talk to reporters after the game. Aggies coach Kevin Sumlin does not allow freshmen to speak with the media.
"You've got to keep blocking because he's going to run around and make plays," Texas A&M offensive lineman Patrick Lewis said. "He's a playmaker."
Chase Hover kicked a 25-yard field goal in the third quarter for SMU's only points, and Zach Line rushed for 104 yards. That was the senior's 17th career 100-yard performance, second in school history behind NFL great Eric Dickerson.