Jackson Arnold threw four touchdown passes — three to newcomer Deion Burks — and No. 16 Oklahoma routed Temple 51-3 on Friday night in the season opener for both teams.Oklahoma forced six turnovers and held Temple to 197 yards in its first game as a member of the Southeastern Conference. The Sooners joined the league this summer after a long run in the Big 12.Arnold, a sophomore, completed 17 of 25 passes for 141 yards in his first career victory as a starting quarterback for the Sooners.Burks, a transfer from Purdue, never caught more than two touchdown passes in a game for the Boilermakers. He had three scores at halftime Friday and finished with six catches for 36 yards.Freshman Taylor Tatum ran for 66 yards and a touchdown on just four carries, the best run a 35-yard burst that showed off some of his immense potential.The Sooners led 34-0 at the half. They forced four turnovers and held the Owls to 80 yards before the break.Oklahoma’s Jaren Kanak returned a fumbled punt return 21 yards for a touchdown to put the Sooners up 44-3 early in the fourth quarter.Forrest Brock passed for 128 yards with no touchdowns and two interceptions for Temple. The Owls fumbled four times and lost them all.The TakeawayTemple: The Owls were completely outmanned, and they made matters worse with numerous mistakes. Drayton was hesitant to name a starting quarterback during the week out of the three contenders, but the Owls got very little out of the position.Oklahoma: The Sooners simply did what was necessary. There wasn’t much flash in their approach, they just ground down Temple. They struggled a bit on offense, gaining just 378 yards.Up NextTemple: At Navy on Sept. 7.Oklahoma: Hosts Houston on Sept. 7.