LINCOLN, Neb. (AP) — Tommy Armstrong Jr. and Ron Kellogg III combined to pass for 305 yards, Ameer Abdullah ran for a career-high 139 yards and Nebraska shook off South Dakota State in the second quarter in a 59-20 victory Saturday.

Armstrong got the start in place of the injured Taylor Martinez, but playing time was evenly split between the redshirt freshman and Kellogg.

Nebraska (3-1), which finished with 645 yards, scored 38 straight points after falling behind 17-14 in the first quarter against the Championship Subdivision Jackrabbits (3-1).

Martinez didn’t practice this week because of a turf-toe injury on his left foot and was in shorts and a T-shirt on the sideline. He had started 32 straight games since 2010.

The victory will do little to quell concern over Nebraska’s defense. SDSU’s Zach Zenner ran for 202 yards, tied for 10th-most by a Nebraska opponent, and the Jackrabbits finished with 465 total yards.