Kyle Shanahan was filled with pride as the San Francisco 49ers finally ended their long home-win drought with a 31-10 upset of the Los Angeles Rams, but he warned that cannot be a flash in the pan.

All eyes were on debutants Odell Beckham Jr. and Von Miller after the high-flying Rams (7-3) acquired the star duo to boost their Super Bowl bid.

But the 49ers (4-5) spoiled the party – Jimmy Garoppolo throwing two touchdown passes as San Francisco celebrated just their second home win in the past two seasons, keeping their playoff hopes alive on Monday.

The 49ers, who have now won five straight games against the Rams – the longest active streak by either side, matching their 2008-10 run – had last emerged victorious on home soil in October 2020, also over the Rams.

Part of that was down to the 49ers having to play part of the 2020 season in Arizona due to COVID-19 restrictions in Santa Clara, but there was still a sense of relief as they eventually enjoyed success in their own backyard.

Shanahan was grateful to put such a run behind them.

"It's been frustrating," he said. "We haven't won at home yet this year. The last time we did win at home was versus the Rams.

"We had one game after that versus the Packers, and we spent are our home [games] in Arizona, but just going to this year was very frustrating.

"Especially, the crowds that we've had, the way our fans have been. They were awesome today. Just like they were awesome last week, but I'm glad we gave them something to be proud of today.

"I just told [the team] how proud of them I was. I said we've got a short week. I think we've got a real good team [the Jacksonville Jaguars] ahead of us – that's how we expect to play here.

"It's been long overdue and we've got to make sure that we take a day off. Those guys rest, come back healthy on a short week, make sure we keep it going forward."

There were entirely different thoughts going through the head of Rams coach Sean McVay, however, with the Super Bowl hopefuls suffering back-to-back losses for the first time this season.

"I choose to believe that these last couple weeks are not who we are," he said. "I refuse to believe that, even though, you know what, you're only as good as your last game.

"These last two weeks have certainly been humbling."

Beckham was rather less dramatic, though, despite his debut being overshadowed by a chastening defeat.

The wide receiver, who joined the Rams as a free agent this week following his release by the Cleveland Browns, simply felt the 49ers were better all over the field.

"I was excited, I felt like I was ready for the moment," Beckham added. "I've been through so much and God has put me in this position for that exact moment.

"It just wasn't our night. There's really no way around it, it just wasn't our night. Any given Sunday any team can win.

"The Niners came out and they played better than us in all phases of the game, and that's really the moral of the story. There's no trying to find what happened, they just outplayed us."