Rivalries
The San Francisco 49ers have three rivals within their division:(St. Louis Rams, Arizona Cardinals, Seattle Seahawks).They also have rivalries with other teams that arose from post-season games in the past, most notably the Dallas Cowboys, New York Giants, and Green Bay Packers. They also have an intense Crosstown rivalry with the Oakland Raiders, and share an intrastate rivalry with the San Diego Chargers (the two teams have played each other nearly every preseason, and every 4 years in the regular season).
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