EDEN PRAIRIE, Minn. — Every NFL team will likely have ups and downs through the course of a 16-game campaign.
That's certainly been the case through four games for the Vikings, who have won a pair and lost a pair over the first quarter of the 2017 season.
Minnesota opened its season with a rousing home win on Monday Night Football against New Orleans. Quarterback Kyle Rudolph injured his knee in the game and has not played since.
The Vikings then dropped to 1-1 with a loss in Pittsburgh when Case Keenum made his first start with Minnesota.
Keenum and the Vikings offense put up almost 500 yards of offense in a home win against Tampa Bay in Week 3. The quarterback threw for a career-high 369 yards.
Minnesota then fell to 2-2 after Sunday's loss to the Lions, a game in which rookie running back Dalvin Cook tore his ACL, an injury that will cause him to miss the remainder of the season.
The Vikings also fumbled three times and didn't force a takeaway in a frustrating 14-7 loss.
Add it all up, and Zimmer said there has been a mix of good and bad through the first four weeks of the season.
"I assess it at 2-2. That's where we are," Zimmer said. "We had opportunities that we didn't get done. We played some good games. It is what it is."
Here are three other topics Zimmer addressed during his podium session:
1. An update on Bradford
Zimmer said last week that Bradford was day-to-day with his knee injury.
The status hadn't changed as of Monday morning when Zimmer met with the media.
"Again, it's day-to-day. It feels better," Zimmer said. "Everything he is doing is feeling better. But obviously, we don't know.
Keenum is 1-2 as Minnesota's starter and has thrown for 755 yards with three touchdowns and no interceptions.
2. Keenum's misread on 3rd-down sack
The Vikings had a chance to tie the score with just over two minutes left in Sunday's game against the Lions.
Minnesota faced a third-and-goal situation from the 3-yard line as Keenum surveyed Detroit's defense.
Zimmer said Monday that Keenum misread the pre-snap look the Lions gave him and shifted the protection from the offensive line to the left.
That left Lions defensive end Anthony Zettel unblocked, and he barreled toward Keenum for an 11-yard loss on a sack. The Vikings fourth-down try was incomplete.
Zimmer said that Keenum was fooled on the play, but added he needed to throw the ball away once the pressure hit.
"Yes, he changed it. Thought it was zero [blitz], changed the protection, then got a couple guys dropping, but he dropped the protection," Zimmer said. "Change the protection, and he's got to know which way the protection is going, and if somebody comes off that side he's got to rid of the football."
3. Tracking Trae
Vikings cornerback Trae Waynes was on the field for all but one defensive snap Sunday against Detroit (69 of 70 plays).
Zimmer thought Waynes, a former first-round pick, fared well against the Lions. Waynes had a pass breakup in the end zone before Detroit scored a rushing touchdown.
"I thought he played a lot better. He covered his guys a lot closer," Zimmer said. "For the most part, he tackled well.
"He had the chance for the one interception in the end zone and didn't get it down," Zimmer added. "It would've been a tough play, but I thought he played better."