the Vikings, and then again on November 19, against the Arizona Cardinals. It was used once in 2021, on Thursday Night Football vs. the Rams. In the 2020 home game vs. Arizona, the Cardinals wore their all-black color rush uniform, marking the only time a visiting team has worn a dark jersey in Seattle. Rivalries San Francisco 49ers From 2011 to 2014, the Seahawks and the San Francisco 49ers emerged as two of the best teams in the NFC, and naturally developed a heated rivalry as a result. The 49ers head coach at the time, Jim Harbaugh, had a contentious history with Seahawks coach Pete Carroll due to Harbaugh's previous job as coach at Stanford against Carroll's USC Trojans. While the 49ers had the upper hand in the early stages of the rivalry, winning the first three head-to-head contests against Carroll in 2011 and Week 7 of 2012, the tide began to turn when the Seahawks defeated the 49ers soundly in Week 16 of 2012 on prime time by a score of 42–13. Both teams reached the playoffs that year, and the 49ers reached Super Bowl XLVII only to lose to the Baltimore Ravens. In 2013, the Seahawks again thumped the 49ers 29–3 in a Week 2 contest, but the 49ers would triumph in Week 14 by a score of 19–17. The Seahawks would ultimately have the last laugh, however, when they beat the 49ers in the 2013 NFC Championship Game 23–17. The game was back and forth until the final moments, when a pass intended for 49ers WR Michael Crabtree was tipped by Richard Sherman and ultimately intercepted by LB Malcolm Smith in the end zone, with 25 seconds left in the 4th quarter to end the game. The Seahawks won both games against the 49ers in 2014, notably trouncing them 19–3 on a Thanksgiving night game at Levi's Stadium in Santa Clara. Harbaugh was fired at the end of the season, effectively rendering the rivalry dormant. Since rejoining the NFC West, the Seahawks lead the series 25–13 versus the 49ers, including playoffs. Overall, the Seahawks lead the series 27–17. Los Angeles Rams The rivalry between the Seahawks and Los Angeles Rams came into existence in 2002 following the Seahawks’ relocation to the NFC West. The first notable matchup between the two clubs occurred in the 2004 NFC Wild card round when the Rams managed to defeat the Seahawks