Why 49ers should be concerned after disastrous 27-24 loss to Rams

Matt Maiocco and Jennifer Lee Chan analyze how the 49ers blew a 10-point fourth-quarter lead to the short-handed Rams in Week 3. Matt and Jennifer detail the special-teams miscues and defensive breakdowns that led to the stunning defeat despite Jauan Jennings’ career-best three-touchdown day.0:45 What to make of 49ers' ugly, disastrous loss to Rams2:30 Rams exploit 49ers' special-teams miscues5:30 Brandon Aiyuk didn't step up in offensive stars' absence10:30 Why wasn't Week 2 loss to Vikings an eye opener?14:00 How much blame should Kyle Shanahan receive for back-to-back sloppy games?23:30 Analyzing Jennings' big performance27:30 Breaking down 49ers defense's struggles past two weeks