Trubisky, called into action as the Bears’ starter for the first time, threw his first career touchdown pass to tie the game 17-17 in the third quarter, a 20-yard pass that deflected into the hands of tight end Zach Miller. The next big play from the rookie came on the two-point conversion; Trubisky jogged in on a trick play after handing the ball to Jordan Howard, who handed to Miller, who pitched back to Trubisky.

The Bears’ defense turned in a strong performance, including recording a safety for the game’s first score. Chicago forced a Minnesota punt late in the game with the score tied, but Trubisky was picked off by Harrison Smith on the ensuing drive that set up the Vikings for the game-winning field goal, a 26-yarder from Kai Forbath.

Sam Bradford started at quarterback for the Vikings after missing three games with a knee injury, but he played poorly (5 for 15, 36 yards) and was replaced by Case Keenum just before halftime. Keenum finished 17 for 21 with 140 yards and a touchdown.

Minnesota overcame a lack of rhythm on offense to produce several big plays in the second half, including Jerick McKinnon’s 58-yard rushing touchdown in the third quarter that put the Vikings up by eight.

McKinnon’s score followed a spectacular Bears TD off a fake punt. Chicago punter Pat O’Donnell passed to Benny Cunningham, who dashed up the middle to complete a 38-yard touchdown.

The Vikings are level with the Lions in the NFC North at 3-2, and both are behind the first-place Packers (4-1). The last-place Bears (1-4) sunk further with the loss.

Look back on what you missed from “Monday Night Football” with SN’s live blog.

Vikings vs. Bears: Score, live updates

(All times Eastern)

11:41 p.m.: FINAL: Vikings 20, Bears 17. Mitchell Trubisky goes 12 for 25 for 119 yards with a touchdown and an interception in his NFL debut, but the Vikings take the win with a late field goal.

11:37 p.m.: The Vikings’ field goal attempt is good and they take the lead, 20-17.

11:36 p.m.: Here comes the field goal attempt for the win for the Vikings.

11:30 p.m.: Two-minute warning. The Vikings face third-and-4 on the Bears’ 22-yard line.

11:28 p.m.: There’s Trubisky’s first career interception. His pass is picked off by Harrison Smith and the Vikings have the ball on their Bears’ 28.

11:26 p.m.:  The Vikings will punt after being unable to convert on third-and-8. 

11:22 p.m.: Five minutes left, and the Vikings are on their 48 on second-and-5.

11:14 p.m.: The Bears punt, and the Vikings will take over on their 15 after a penalty.

11:09 p.m.: The Vikings punt and the Bears will start their next drive on their 15 with 9:21 remaining.

11:07 p.m.: Here’s the Bears’ creative two-point conversion.

11:03 p.m.: Keenum scrambles for a first down and more.

11:01 p.m.: Here’s the touchdown pass from Trubisky to Miller.

10:59 p.m.: Two-point conversion, Bears. Trubisky rushed in untouched to tie the game.

10:57 p.m.: Touchdown, Bears. That’s Trubisky’s first career NFL touchdown. A 20-yard touchdown pass to Zach Miller ties the game after the Bears notch the two-point conversion.

10:56 p.m.: Howard rushes for a first down and the Bears are into the red zone.

10:53 p.m.: We are headed to the fourth quarter.

10:44 p.m.: Here’s McKinnon turning the corner and speeding into the end zone.

10:41 p.m.: Touchdown, Vikings. Jerick McKinnon is gone, and the Vikings have a TD. They make it 17-9 with McKinnon’s 58-yard rushing score.

10:39 p.m.: Here’s the fake punt touchdown. Look how calm O’Donnell is making the throw.

10:36 p.m.: The 38-yard pass from O’Donnell is the Bears’ longest pass of the season.

10:34 p.m.: …. Anyone?

10:32 p.m.: FAKE PUNT. Touchdown, Bears. Pat O’Donnell passes to Benny Cunningham, who jukes a defender and gets in the end zone for the score. The Vikings still lead 10-9.

10:31 p.m.: The Bears face third-and-6 after a pass is ruled incomplete after review.

10:29 p.m.: The score of this game so far is unusual, but it’s not “Scorigami” (an NFL final score that has never happened before) unless the Vikings score another touchdown.

10:24 p.m.: Check out the “Duck, duck, goose” touchdown celebration.

10:21 p.m.: Touchdown, Vikings. Keenum finds Kyle Rudolph wide-open in the back of the end zone. That’s a 13-yard touchdown pass. The Vikings lead 10-2.

10:20 p.m.: An injury for the Bears’ defense.

10:16 p.m.: Thielen dashes for a first down on a jet sweep. The Vikings are within the Bears’ 30-yard line.

10:11 p.m.: Latavius Murray rushes for a Vikings first down.

10:10 p.m.: The Vikings receive the kickoff to start the second half.

10:07 p.m.: Gruden to play a Storm Trooper in the upcoming “Star Wars” film?

10:01 p.m.: The new “Star Wars” movie trailer is playing at Soldier Field.

9:54 p.m.: Keenum completes a pass in the middle of the field, so the Vikings can’t attempt a field goal with time running out. HALF: Vikings 3, Bears 2.

9:52 p.m.: The Vikings make a change at quarterback.

9:46 p.m.: Field goal, Vikings. The Vikings grab the lead. It’s 3-2 to the visitors.

9:45 p.m.: The Vikings are in the red zone, down to the Bears’ 8-yard line.

9:42 p.m.: Big play from the Vikings’ defense here, but the ruling was an incomplete pass.

9:40 p.m.: Looks like Bradford is having his knee looked at on the sideline. This is his first game back from a knee injury that kept him out three games.

9:39 p.m.: The Vikings punt and the Bears will start the next drive on their 20.

9:36 p.m.: Bradford completes a 14-yard pass to Adam Thielen. First down for the Vikings.

9:34 p.m.: And the Bears are leading.

9:31 p.m.: Trubisky’s pass is incomplete and the Bears will punt again.

9:29 p.m.: The Bears face third down on their own 37. Trubisky scrambled but only picked up a couple yards.

9:20 p.m.: Bradford is sacked by Akiem Hicks for a loss of 7 and that’s going to end the Vikings’ drive.

9:17 p.m.: The Vikings start the next drive on their own 20. Penalties plagued the Bears on that last drive, negating a Jordan Howard touchdown and making a first down impossible after offensive pass interference and holding.

9:14 p.m.: Trubisky’s pass is incomplete and the Bears now face third-and-15.

9:12 p.m.: It’s first-and-27 for the Bears are an offensive pass interference call.

9:09 p.m.: Here’s the sack and safety from Leonard Floyd that put the Bears in the lead.

9:07 p.m.: End of the first quarter.

9:05 p.m.:  Total yards: Bears 74, Vikings 2.

9:03 p.m.: Safety, Bears. Bradford is taken down in the end zone. The Bears lead 2-0.

9:01 p.m.: The Vikings take over deep in their own territory. A holding call just put them back even further. The Bears’ defense has made some plays already tonight.

8:58 p.m.: Trubisky got the drive started well with a pass completion for first down. Jordan Howard just got dropped in the backfield for a loss of 4 yards.

8:56 p.m.: This game, so far, seems to be a contest of which team can do the least.

8:54 p.m.: After Bradford and the Vikings can’t get anything going on offense, the Bears field a punt and will start on their own 36.

8:49 p.m.: And this is just bad.

8:48 p.m.: The Bears are set to punt after being unable to convert on the Vikings’ 43-yard line.

8:41 p.m.: The Vikings go three-and-out after Bradford can’t complete a pass on third down.

8:38 p.m.: The Bears are forced to punt and the Vikings will start their first drive of the game on their 12.

8:36 p.m.: Here’s Trubisky’s first career pass.

8:34 p.m.: The Bears are rolling on their first drive. Trubisky’s first two NFL passes are complete. The Bears are down to the Vikings’ 35.

8:28 p.m.: We will see Trubisky’s debut on the first drive of the game.

8:11 p.m.: Kickoff is approaching at Soldier Field.