Texas quarterback Arch Manning will get his first college football start on Saturday when the No. 1 Longhorns host Louisiana-Monroe in Austin.Head coach Steve Sarkisian made the start official Thursday.A redshirt freshman, Manning will be filling in for Quinn Ewers, a Heisman Trophy candidate who suffered an abdominal strain in the Longhorns’ 56-7 win against UTSA last Saturday.”Arch will start at quarterback Saturday,” Sarkisian said Thursday on his weekly pregame video call, per 247Sports. “You know, I feel like Quinn has made great strides ever since Saturday night into where he’s gotten to. But my decision is — I’m looking forward to [Ewers’] future as a player, but also to the future of the season for us and the longevity and getting him possibly one more week healthier for the long term. I think it’s good for us as we’re getting ready for SEC play. So Arch is more than capable, as I think we all know.”Manning, the nephew of Super Bowl-winning quarterbacks Peyton and Eli Manning, represented the family name well when he replaced Ewers last Saturday.