Packers football: Matthews not just a star — he's a 'supernova'
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49ers–Rams rivalry - Wikipedia
NFL - A classic NFC rivalry on Championship Sunday. #NFLPlayoffs
The Rich NFL Playoff History of the Packers vs. 49ers
49ers-Packers lacks emotional fire of S.F.'s Cowboys rivalry. And
49ers: History behind rivalry with Packers ahead of NFC
Green Bay Packers - Wikipedia
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San Francisco 49ers - Wikipedia
Is the Chargers and Raiders rivalry more intense than the Cowboys