Between the history we've had when the Seahawks were in the AFC West, to Super Bowl 48, to everything with Russ including him getting booed in his game back in Seattle, is
Broncos-Seahawks rivalry, American Football Wiki
Seattle Seahawks - Wikipedia
NFL fans slam Jets and Broncos amid reports of potentially flexing Cowboys-49ers Week 5 game - 2 mediocre a** teams
Rams–Seahawks rivalry - Wikipedia
Seattle Seahawks defeat Denver Broncos in Russell Wilson's return
NFL Super Bowl 48 Game Program XLVIII 2014 Denver Broncos VS Seattle Seahawks
War Eagle! History of Auburn Tigers Football by Steve Fulton - Ebook
Rams–Seahawks rivalry - Wikipedia
Seattle Seahawks, Denver Broncos to Rekindle Old AFC West Rivalry in Super Bowl, News, Scores, Highlights, Stats, and Rumors