How will the 49ers pass defense look in Week 2 against Detroit after what happened in Week 1?

The Vikings passing attack was in full force against San Francisco. The pass rush was getting after Kirk Cousins, though, with DeForest Buckner leading the way with 2.5 sacks on the day.

However, it still wasn’t enough as the secondary gave up big play after big play to Cousins and Co. At times, when the former Kyle Shanahan quarterback was being rushed, he could still find an open receiver. Vikings wideout Adam Thielen came away with a 100-yard game, and both wide receiver Stefon Diggs and tight end Kyle Rudolph came away with touchdowns. Also, Minnesota running back Dalvin Cook came away with a big game as a receiver, as he caught six passes for 55 yards.

It was a great effort by the 49ers defense to contain the Vikings running game. They held both Cook and Latavius Murray to three yards per carry and didn’t allow either to break away with any big run.

But next week’s matchup with the Detroit Lions is all about the pass and not the run. Detroit ranked sixth in passing in 2017, as they ranked last in rushing.

If the 49ers want to get back on track to a winning record, then they’ll need to defend the passing game better.