There are reasons to believe the 49ers will not bounce back and that their Super Bowl window finally has slammed shut.

Here's the when and where is Super Bowl LIX and who is performing the national anthem, pre-game and halftime shows.

But your reaction seems reasonable. Five years ago, the 49ers breezed through the NFC and had a 10-point lead in the Super Bowl. Losing that game was their first big heartbreak. The next season ...

In February, these 49ers lost to the Kansas City Chiefs in Super Bowl LVIII. Just 10 months later, an ever-growing mountain of injuries, personal tragedies and on-field struggles have left their ...

This was not the 49ers’ season. Sometimes it’s just that simple. The vibes were not there. It was a bizarre training camp with a couple of their key players embroiled in contract disputes.

But there also are reasons to believe the 49ers will not bounce back and that their Super Bowl window finally has slammed shut: 1. Christian McCaffrey probably isn't an elite running back anymore.