San Francisco blew an 11-point lead and fell to a short-handed roster as the Falcons handed them their first loss.
The 49ers' perfect start is over. San Francisco blew an 11-point lead and lost to the Atlanta Falcons, dropping their first game of the season and falling to 6-1.
The loss leaves the Minnesota Vikings and Kansas City Chiefs as the NFL's only remaining unbeaten teams. San Francisco played short-handed, and the result was a mistake-filled performance that let a struggling Falcons team pull off the upset.
Inside the building, the feeling was less about bad luck and more about stalled progress. Linebacker Fred Warner said the outcome lined up with a lack of growth from the team, suggesting the issues went beyond a single bad Sunday.
The question now is whether this was a one-off hiccup against a lesser opponent or an early warning sign for a 49ers team that had looked untouchable through six weeks. With the Vikings and Chiefs now standing alone atop the standings, San Francisco has lost its spot among the league's unbeaten teams and will need to answer whether this loss reflects a deeper problem before it becomes a pattern.