Resting most of their starters in Sunday's preseason opener against the Dolphins at Soldier Field, the Bears battled the Dolphins to a 24-24 tie.

The game featured three lead changes in the final 15:19, including two that came on Case Keenum touchdown passes. The Bears took leads of 17-14 on his 4-yard TD pass to running back Deion Hankins late in the third quarter and 24-21 on a 15-yard scoring pass to receiver Jahdae Walker midway through the fourth period.

Per NFL rules, there is no overtime in preseason games.

"It's hard to assess the feeling in the locker room on a tie like that," said coach Ben Johnson. "Those guys went out there and they laid it out. All those guys that were active, they did a great job going out there and competing. You just don't know how to feel when it ends up being 24-24. It doesn't matter preseason or not. You go out there, they're keeping score and you're playing to win."

Johnson was pleased with the effort and intensity Bears players demonstrated throughout the game. He lauded defensive linemen Jonathan Ford and Zacch Pickens and defensive backs Josh Blackwell and Tre Flowers for returning to the contest after exiting with injuries.

Second-year defensive end Austin Booker starred, registering three sacks including a strip-sack that resulted in a key takeaway that led to a Bears' go-ahead TD.

On their first possession of the game, the Dolphins marched from their own 42 to the Chicago 1. On fourth-and-goal, linebacker Noah Sewell knifed into the backfield and dropped running back Jaylen Wright for a 3-yard loss, turning the ball over on downs. Sewell had forced a fumble earlier on the drive, but the ball bounced out of bounds.

The Dolphins took a 7-0 lead on running back Alexander Mattison's 1-yard touchdown run early in the second quarter, capping a 7-play, 51-yard drive.

The Bears tied the game 7-7 on Tyson Bagent's 4-yard touchdown pass to receiver Maurice Alexander in the back of the end zone on fourth-and-goal with 4:38 left in the first half. Alexander leaped high over two defenders to snare the ball.

"Tyson did a great job," Johnson said. "That was one of those high back-five throws that we've been talking about. Maurice is actually the secondary option. No. 1 wasn't there, so Tyson got to No. 2 and gave him a chance and [Alexander] climbed the ladder, went up there and got it and got both feet inbounds. Huge play for us there in there tight."

The 16-play, 79-yard drive was highlighted by Bagent completions of 17 yards to receiver Devin Duvernay and 16 yards to rookie receiver Luther Burden III on third-and-15. Rookie running back Kyle Monangai rushed for 29 yards on five carries.

The Dolphins responded by taking a 14-7 lead on Wright's 7-yard TD run up the middle with 1:45 remaining in the first half.

Miami had an opportunity to extend its lead when safety Patrick McMorris intercepted a deflected Bagent pass and returned it 20 yards to the Bears' 46. But Pickens and fellow defensive lineman Dominique Robinson followed with sacks of backup quarterback Zach Wilson — with Robinson's coming on fourth-and-6, turning the ball over on downs with :06 left in the half.

Bagent's 13-yard pass to Burden with :01 to play gave Cairo Santos an opportunity to boot a 57-yard field goal and the veteran kicker split the uprights with plenty of distance to spare, closing the gap to 14-10 at halftime.

"Luther did a phenomenal job there catching that shallow route and getting out of bounds and having a second left," Johnson said. "And then Cairo coming through with that big kick. That was pretty strong. I was joking with him like, 'Shoot, man, we probably didn't even need that many yards, we could have kicked it from backed up the way he nailed that thing.'

"You always talk about how you end the halftime. You want to end with the ball and by scoring points, so that was really well done by the whole group."

Bagent was replaced by Keenum to start the second half after completing 13 of 19 passes for 103 yards with 1 TD, 1 interception and a 77.3 passer rating.

The Bears took a 17-14 lead late in the third quarter on Keenum's 4-yard TD pass to Hankins on third-and-goal. The go-ahead score was set up by a Booker strip/sack of rookie quarterback Quinn Ewers. Linebacker Power Echols returned the fumble two yards to the Miami 3. It was Booker's third sack of the game.

The Dolphins answered as running back Ollie Gordon II's 1-yard TD run capped an 8-play, 49-yard drive and gave Miami a 21-17 lead with 11:48 to play in the game.

The Bears retook a 24-21 lead on Keenum's 15-yard TD pass to Walker on a perfectly thrown fade pattern in the right corner of the end zone with 8:38 to go.

Miami tied the score 24-24 on Jason Sanders' 56-yard field goal with 6:22 remaining.

Keenum then yielded to Austin Reed after connecting on 8 of 10 passes for 80 yards, two TDs and a 139.6 passer rating.

This and that

In the competition for the starting left tackle position, veteran Braxton Jones played the first three series before being replaced by rookie second-round pick Ozzy Trapilo, who played the rest of the game.

Bears players who did not suit up Sunday were quarterback Caleb Williams; running back D'Andre Swift; receivers DJ Moore, Rome Odunze and Olamide Zaccheaus; tight end Cole Kmet; offensive linemen Joe Thuney, Drew Dalman, Jonah Jackson and Darnell Wright; defensive linemen Montez Sweat, Grady Jarrett, Dayo Odeyingbo, Andrew Billings and Gervon Dexter Sr.; linebackers Tremaine Edmunds and T.J. Edwards; nickel back Kyler Gordon and safeties Jaquan Brisker and Kevin Byard III.

Players who sat out with injuries were receiver Miles Boykin; offensive linemen Kiran Amegadjie, Doug Kramer and Bill Murray; defensive lineman Shemar Turner and cornerback Jaylon Johnson.