UNIVERSITY PARK, Texas — Two teams that had combined for 100 points a week ago played an overly defensive college football game Friday night that offended most fans of an offensive team.

But as good as Jay Hill’s defense was on Friday night in the Dallas suburb, BYU’s offense had to win its second game of the season.

Miles Davis had a 37-yard run on fourth-and-1 and Will Ferrin kicked a 26-yard field goal with 1:58 left, allowing BYU to hold on and hand SMU its first loss, 18-15.

Jake Retzlaff completed 15 of 28 passes for 202 yards, one touchdown and two interceptions, and Enoch Nawahine added 16 yards and a score for BYU (2-0).

Collin Rogers kicked five field goals for SMU (2-1), including a 58-yard field goal – the longest of his career – to keep the Mustangs in the game.

But the hero of the game was BYU’s defense, which limited the Mustangs to 261 yards of offense with Hill calling the plays from the box just over a week after undergoing heart surgery.

BYU held SMU to 39 yards of offense, including 8 yards on the ground, in the first quarter with an aggressive defense led by three tackles for loss and sacks by Jack Kelly and Blake Mangelson.

After his first drive ended with a lost fumble, Retzlaff gave the Cougars an early 7-0 lead by hitting Mata’ava Ta’ase on a 16-yard pass with 7:17 left in the first quarter.

Collin Rogers made two 50-yard field goals, including a career-high 53-yard field goal early in the second quarter and a 52-yard field goal midway through the third.

The Mustangs failed to convert two offensive plays, although BYU’s offense stalled when tailback LJ Martin apparently left the field with an ankle injury.

The sophomore from El Paso, Texas, first injured his ankles on the sidelines, then entered the medical tent with athletic training staff and emerged heavily taped as he trotted along the sidelines with staff.

With Martin out for the game, BYU’s offense stalled.

In three full drives without the sophomore tailback, the Cougars managed three three-and-outs and suffered a turnover on downs after Kelly recovered a fumble on a punt return.

After Rogers’ third field goal of the night gave SMU a 9-7 lead, the Cougars went 38 yards in six plays before Ferrin’s 55-yard attempt missed the goal post just before time expired in the first half.

Rogers’ fourth field goal followed an 11-play, 24-yard drive after Retzlaff’s pass was intercepted by Kobe Wilson, putting the team up 12-9.

But BYU’s defense kept the Cougars in the game long enough for Retzlaff and backup running back Nawahine to go on offense in the third quarter.

The redshirt junior signal-caller used his legs to set up a 26-yard pass to Ta’ase, and Nawahine scored on a 9-yard run on fourth-and-2 with 1:15 left in the third quarter. Keanu Hill snagged the 2-point conversion and the Cougars went into the final period with a 15-12 lead.

Marque Collins intercepted a pass from Kevin Jennings on the corner just outside the end zone early in the fourth quarter and Jakob Robinson recovered a fumble forced by Harrison Taggart to keep the Mustangs at bay with nine minutes left.

This story will be updated.