An offense filled with backups on the offensive line and at receiver coupled with a clutch defense is difference in big NFC West win.

The Rams defense forced two straight incompletions, then tackled 49ers quarterback Brock Purdy short. San Francisco (1-2) had no choice but to punt, but could not expect practice squad call up Xavier Smith to return the kick to midfield. Without a timeout, the Rams were already within striking distance of field goal range.

Joshua Karty hit a 37-yard field goal with two seconds remaining and the Los Angeles Rams pulled off an improbable 27-24 victory over the San Francisco 49ers in Inglewood, Calif., on Sunday by scoring 13 points in the final 6:15.