Seahawks, not Rams are 49ers biggest rival per WR Deebo Samuel
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Get hype: The Seahawks-49ers Rivalry Is Back, and the NFL Is Better Off for It : r/49ers
49ers-Seahawks rivalry bubbles into offseason with bizarre trash talk
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Dak Prescott and Cowboys confront 49ers in playoff rivalry renewal - The Japan Times
Frickin' flying off the top of the roof': No shortage of drama in Seahawks- 49ers prime-time showdown
How a dirty play could spark a new era of the 49ers-Seahawks rivalry
The Battle of Seattle: Is the Seahawks/49ers Rivalry Dead? – Rolling Stone
The Rams and 49ers are ready to renew an old L.A.-San Francisco rivalry - Los Angeles Times
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Kurtenbach: The 49ers-Cowboys rivalry defined the NFL for two decades. This new era won't reach those heights, Sports
Russell Wilson has MVP magic as Seahawks beat 49ers in OT classic