Los Angeles Rams
After the 1994 NFL season, the Rams left California and moved to St. Louis, Missouri. Five seasons after relocating, the team won Super Bowl XXXIV in a 23–16 victory over the Tennessee Titans. They appeared again in Super Bowl XXXVI, where they lost 20–17 to the New England Patriots. The Rams played in St. Louis until the end of the 2015 NFL season, when they filed notice with the NFL of their intent to relocate back to Los Angeles. The move was agreed at an owners' meeting in January 2016, and the Rams returned to the city for the 2016 NFL season.
San Francisco 49ers
The rivalry between the Los Angeles Rams and the San Francisco 49ers is considered by many to be one of the greatest NFL rivalries ever, placing No. 8 on "Sports Illustrated"'s "Top 10 NFL Rivalries of All Time" list, compiled in 2008. After the Rams moved to St. Louis, Roger Craig stated in "Tales from the San Francisco 49ers Sideline" that "the Rams will always be the 49ers' biggest rival. It doesn't matter if they no longer play in Los Angeles. If the Rams played their home games on Mars, it would still be a rivalry." In fact, the Rams are the only team to have played the 49ers twice every season for the last 58 seasons to combine for more than 100 regular season games; the all-time regular season lead is held by the 49ers 65–63–3. They have only met once in a playoff game, when the 49ers beat the Rams 30–3 in 1989.