Derrius Guice did not start the game for Baton Rouge’s Catholic High because of an injury early in the week.

It didn’t matter.

The LSU commitment rolled up 274 all-purpose yards, with 264 coming in the first half, as the Bears rolled over host Mandeville 48-0 in a nondistrict game Friday night.

“Derrius is an elusive player,” Catholic coach Dale Weiner said. “But I am also proud of my defense. Tonight we played a complete game.”

The Bears defense held the Skippers to 128 yards, with 85 of those coming in the fourth quarter against reserves. Mandeville had two first downs, both by penalty, until 9:06 remained.

Guice scored on a 76-yard touchdown run and took a lateral 46 yards — on a hook-and-lateral — on the last play of the first half for another score. Guice finished with 182 yards on 11 carries.

The Bears (2-0) rolled up 351 first-half yards while holding the Skippers to 40 in racing to a 31-0 halftime lead and never looked back. They finished with 379 yards, including 212 rushing.

The Skippers (0-2) had seven first-half possessions that resulted in six punts and an interception. Mandeville managed one first down — and it was on a pass interference penalty. The Skippers had nine punts and five turnovers for the game.

Ian Brian had three first-half touchdowns and was 15-of-20 for 159 yards.

“I’m really proud of Ian Brian,” Weiner said. “We knew this game was going to be a test. I think it’s important to start fast and finish strong. Our defense kept giving us the ball on their side of the field.”

Brian hit Grayson Walsh with a 13-yard scoring toss, and Jack Gonsoulin hit the first of his six extra points to give Catholic a 7-0 lead with 5:13 left in the first quarter.

Gonsoulin added a 43-yard field goal to send the lead to 10-0 with 10 seconds to go in the first.

Guice’s first touchdown increased the lead to 17-0. The Bears scored two touchdowns in the final 1:17 of the half. Brian hit Nick Deranger on a 5-yard scoring toss.

Catholic forced a punt and regained the ball at its 41-yard line with 11 seconds left. After an incompletion, 6 seconds remained. Brian threw a short pass to Walsh, who lateraled to Guice. He ran up the sidelines untouched as a stunned Mandeville defense chased to no avail.

“We handled our game plan,” Brian said. “We opened up the passing game, but the defense did a great job.”

Of the Skippers’ 23 plays in the first half, 15 resulted in 1 yard or less. The Skippers’ two quarterbacks combined to complete just 10 of 35 passes for 57 yards and four interceptions.

Mandeville coach Guy LeCompte declined comment after the game.