3:14 PM - The Vikings fall to 1-1 on the season as Minnesota loses 26-9 in Pittsburgh. The Vikings gained 237 yards on offense but has 12 total penalties for 136 yards. Everyone Griffen had 2.0 sacks for the Vikings in the loss. The Vikings return home next Sunday with a noon (CT) home matchup against the Tampa Bay Buccaneers.

3:09 PM - Pittsburgh adds to its lead with another field goal as Minnesota now trails 26-9 with just under 2 minutes remaining.

3:03 PM - The Vikings turn the ball over on downs after Keenum's pass on fourth-and-15 is incomplete to Diggs. The Vikings were called for holding and an illegal formation on the drive and have 12 penalties for 136 yards. Pittsburgh takes over on the Vikings 31-yard line.

2:53 PM - The Steelers tack on another field goal as the Vikings now trail 23-9 with just over three minutes left in the fourth quarter.

2:39 PM - The Vikings are held again.

The Vikings pick up a first down on a pass to Laquon Treadwell but a holding penalty sets Minnesota back on the drive. Pittsburgh takes over on its own 17-yard line.

2:35 PM - Minnesota's defense holds tough as the Vikings force a Pittsburgh punt. The Vikings will start at their own 1-yard line trail 20-9 midway through the fourth quarter.

2:22 PM - The Vikings get past midfield but the drive is hampered by a holding call on Nick Easton. Kyle Rudolph made a one-handed grab on third down for 27 yards but the Vikings couldn't convert on third-and-long after the penalty. Minnesota trails 20-9 at the end of the third quarter.

2:10 PM - The Steelers strike with another score.

The Steelers lead 20-9 after a Pittsburgh field goal. Everson Griffen picked up his second sack of the game as he brought down Roethlisberger on third down inside the red zone. Pittsburgh got in field goal range with a 51-yard pass that beat Trae Waynes.

1:55 PM -C.J. Ham is in for the Vikings first touchdown of the game. 

The Vikings strike back as Ham scores on a 1-yard touchdown run for his first career touchdown. Minnesota trails 17-9 after a missed extra point. Dalvin Cook, who set up the score with a 25-yard rush that put the ball on the 1-yard line, had 35 rushing yards on the drive. Diggs had a 21-yard reception on the drive.

1:49 PM - The Steelers add a field goal and lead 17-3. Minnesota was hurt by another penalty as the Vikings were called for an illegal formation after the Steelers missed a 51-yard field goal try. Pittsburgh made the 46-yard try after the penalty

1:45 PM - The Vikings offense goes three-and-out and then can't convert on a fake punt pass attempt by Quigley. Pittsburgh takes over at the Vikings 36-yard line.

1:28 PM - The Vikings trail 14-3 at halftime. Minnesota scored on a 42-yard field goal by Kai Forbath and have 67 yards of offense. Roethlisberger has a pair of touchdown passes for the Steelers, who have 139 yards of offense. The Vikings will get the ball to start the second half.

1:26 PM - The Vikings take over at their own 10-yard line following a Pittsburgh punt. Minnesota stopped the Steelers drive near midfield.

1:13 PM -Minnesota goes three-and-out as Keenum is sacked on third-and-7. Quigley uncorks a 54-yard punt as Pittsburgh starts at its own 12-yard line.

1:11 PM - The Vikings force another Steelers punt as Minnesota forces a Steelers punt. Minnesota forced Roethlisberger into three straight incomplete passes on the drive. The Vikings take over at their own 42-yard line.

1:05 PM - Minnesota goes three-and-out as Cook runs for a yard before Keenum throws a pair of incomplete passes. Pittsburgh takes over at their own 11-yard line.

1:01 PM - The Vikings defense steps up with a stand to force a Steelers three-and-out. Sherels returns the punt to the Vikings 45-yard line. Minnesota trails 14-3 with 8 minutes left in the second quarter. Marcus Sherels just set the Vikings franchise punt return yards record on that return.

12:56 PM - The Vikings get on the board with a 42-yard field goal by Kai Forbath and now trail 14-3. Minnesota's offense moved into scoring range with an 11-yard pass to Rudolph and a 24-yard pass to Thielen. The Vikings had three straight incomplete passes after getting to the 24-yard line.

12:45 PM - Pittsburgh adds to its lead with a 4-yard touchdown pass. Minnesota trails 14-0 early in the second quarter. Griffen had a sack on the drive but Trae Waynes was called for defensive pas interference that gained 49 yards for the Steelers. The Vikings defensive has three penalties for 76 yards so far today.

12:33 PM - The Vikings go three-and-out after getting into a third-and-long situation. Cook was tackled for  loss of 4 yards on first down to put the Vikings behind the sticks. Quigley's punt is fair caught at the Pittsburgh 40-yard line.

12:27 PM - Pittsburgh strikes first with a 27-yard touchdown pass. The Steelers lead 7-0 after the extra point. The Vikings were hurt by a pair of penalties on the drive. Brian Robison jumped offsides on fourth-and-1 before Xavier Rhodes was called for pass interference.

12:14 PM - The Vikings offense is forced to punt after a holding penalty by left guard Nick Easton stalled the drive. Minnesota picked up a first down but eventually faced first-and-20 and had to kick it away. TheSteelers take over on their own 22-yard line.

12:07 PM - The Vikings force a quick three-and-out. Bell had two carries for 7 yards before the Steelers were called for an illegal formation. The Vikinsg will start at their own 26-yard line. Vikings quarterback Case Keenum is making his 15th career start today. He is 9-7 in is last 16 starts. Keenum has 5,2224 career passing yards with 24 touchdowns.

12:03 PM - The Vikings win the toss and defer. Minnesota will start on defense for the second straight week. Cornerback Xavier Rhodes and linebacker Anthony Barr are playing after being listed as questionable on the injury report.

10:31 AM - Sam Bradford is inactive for Sunday's game against the Pittsburgh Steelers, and the Vikings will start Case Keenum at quarterback.

Bradford was on the injury report this week with a knee injury and was limited during all three days of practice.

Keenum joined the Vikings this offseason and will play his first regular-season snaps for Minnesota. He also will be facing Pittsburgh for the first time in his career.

Keenum has played 26 games and made 24 starts for the Texans and Rams since entering the league with Houston as an undrafted free agent in 2012.

Here are the Steelers inactives:

QB Joshua Dobbs

WR Justin Hunter

S J.J. Wilcox

OT Jerald Hawkins

OT Matt Feiler

TE Vance McDonald

DE Stephon Tuitt

7:35 AM - As the Vikings look to improve to 2-0 on the season, they are faced with the tall task of taking down the Pittsburgh Steelers today at Heinz Field (Noon, FOX and KFAN 100.3 FM). Generally considered one of the toughest venues to go into and pull out a win, that rings especially true on this day, as the Steelers are 14-2 in home openers in said building.

After a subpar preseason, the Vikings offense lit up the Saints on Monday night, with QB Sam Bradford taking home NFC Offensive Player of the Week honors after passing for 346 yards and three touchdowns. However, Bradford's name made headlines this week as he was added to the injury report with a sore knee, and was limited in practice all three days. He's listed as questionable for Sunday though Zimmer said on Friday he expects him to play. 

On Saturday, the Vikings added QB Kyle Sloter to the 53-man roster off of the practice squad. Inactives for today's game will be announced at 10:30 AM CT, so we'll know more about the team's situation at quarterback then.

Regardless of who's in at quarterback, if the Vikings offense is again going to have success, it could be argued that it'll hinge, as it often does, on the offensive line. They were able to both protect Bradford and, as the game wore on, open up holes for Dalvin Cook. It'll be key this week for the team to be productive on early downs and stay out of third-and-long situations, which would allow the crowd to amp up and the Pittsburgh defense to pin their ears back.

The Steelers took care of business last Sunday as they beat the Browns by a 21-18 score. Star running back Le'Veon Bell, who held out and missed the entire offseason program and preseason, got off to a slow start, rushing for just 32 yards on ten carries. Hopefully he needs at least another week to shake off the rust.

As for the team's other all-world offensive talent, there was no such thing as a slow start. Antonio Brown made several big-time plays en route to an 11 catch, 182-yard day. Will Head Coach Mike Zimmer and Defensive Coordinator George Edwards assign Xavier Rhodes to shadow Brown all day? It should be noted that Rhodes was limited in practice on Thursday and Friday with a hip injury and is listed as questionable.

At the core of Pittsburgh's offense is of course QB Ben Roethlisberger, a man that Vikings coaches and players all spoke highly of heading into today's game. His ability to move around in the pocket, shake off defenders and accurately deliver the ball makes him one of the NFL's best. Fortunately, the Vikings have one of the NFL's best stable of pass-rushers. As Vikings coaches and front office personnel pointed out this week, the team was able to pressure Drew Brees on Monday night while usually only rushing four. Will the game plan be similar Sunday, or could Zimmer and Co. dial up more blitzes?

One man who could certainly help with the team's ability to blitz is Anthony Barr, but he did not practice on Wednesday or Thursday, and was limited on Friday. Like Rhodes, he's questionable for today's game.

Stay with vikings.com all day for game coverage, including live postgame press conferences, behind the scenes video and photos, plus much more.