San Francisco 49ers
The team was founded in 1946 as a charter member of the All-America Football Conference (AAFC) and joined the NFL in 1949 when the leagues merged. The 49ers were the first major league professional sports franchise based in San Francisco. The name "49ers" comes from the prospectors who arrived in Northern California in the 1849 Gold Rush. The team is legally and corporately registered as the San Francisco Forty Niners. The team began play at Kezar Stadium in San Francisco before moving across town to Candlestick Park in 1970 and then to Levi's Stadium in Santa Clara in 2014.
Oakland Raiders relocation to Las Vegas
On December 11, 2018, the city of Oakland filed an antitrust lawsuit against the Raiders and, individually, all 31 other teams in the NFL seeking millions of dollars in financial damages and unpaid debts on the Coliseum; the suit does not seek an injunction forcing the team to stay. As a result of the lawsuit, Raiders management indicated they would not stay in Oakland for the 2019 NFL season. As of January 2019, three sites are in serious consideration for the Raiders in 2019: Oracle Park in San Francisco, California; San Deigo Stadium in San Diego, California; and Mackay Stadium in Reno, Nevada. Raiders management has outright rejected the notion of sharing Levi's Stadium with the San Francisco 49ers, the league and team are not considering any other locations in the United States (thus ruling out previously considered sites such as Berkeley or San Antonio), and the possibility of playing all of their home games in London, while not rejected, is believed to be an "extreme long shot" given the cost and logistics concerns such a relocation would pose.