AUSTIN, Texas — No. 1 Texas got its first SEC win behind the arm of Arch Manning, who helped the Longhorns overcome a slow start and some self-inflicted setbacks to beat Mississippi State 35-13 on Saturday.

Manning was 26-of-31 for 324 yards and two touchdowns, and added 33 rushing yards and another score, despite Johntay Cook II dropping a wide-open touchdown pass that would’ve added another 62 passing yards in the second quarter. A week after throwing two interceptions in his first start against UL Monroe, Manning said he felt more relaxed.

“I think last week I didn’t have as much fun as I wanted to,” Manning said. “I think I had a little bit more fun today even though it was a little rocky.”

It was rocky because running back Jaydon Blue lost two fumbles — one in the red zone — Cook dropped a touchdown and there were eight penalties on the Texas offense. Coach Steve Sarkisian criticized himself for having his team kick a field goal but then going for it on fourth down after a defensive penalty gave the Longhorns another chance. Texas failed to convert, taking three points off the board.

The Longhorns went into halftime with a 14-6 lead as Mississippi State used a ground-heavy approach behind true freshman quarterback Michael Van Buren Jr. The Bulldogs ran 73 plays to Texas’ 62, but the Longhorns outgained them 522 yards to 294. There were also 17 penalties in the game, many with lengthy reviews.

“It was hard for the game to get a rhythm to it,” Sarkisian said.

But he was pleased the Longhorns navigated this stretch of the season and Quinn Ewers’ injury to start 5-0. It’s the second straight season Texas has started 5-0, marking only the second time in the past 50 years the Longhorns have done it in back-to-back years. Texas has an off week coming up, followed by the Red River Rivalry in Dallas against Oklahoma, before Georgia comes to Austin the following week.

Sarkisian said the Longhorns showed poise, and he was pleased they were able to survive their first SEC challenge while letting Ewers recover from a strained oblique injury without having to rush him back.

“We need Quinn back because he’s our quarterback and he’s our leader,” Sarkisian said. “I think that impacts the entire team and belief, but what I think we learned and what Arch learned here over the last 2½ games is this team can count on him too.”

Manning said he was ready for Ewers’ return whenever that might be.

“I think Quinn’s proved himself,” Manning said. “I mean, he led us to the Sugar Bowl last year and he’s played really well this year, so this is his team. I think he’s going to come back and play really well, but I’ll be ready for when my number’s called if they need me. So we’re just going to try and keep this thing rolling.”