Step inside the San Francisco 49ers Week 18 matchup against the Seattle Seahawks and their Wild Card win over the Philadelphia Eagles, presented by Toyota.

The all-black Rivalries uniform debut and Faithful Appreciation Night highlighted an event-packed night for the Faithful at Levi's® Stadium.

View photos of 49ers fans during the team's Week 18 game against the Seattle Seahawks.

Take a look at key stats from the San Francisco 49ers Week 18 matchup vs. the Seattle Seahawks.

San Francisco 49ers RB Christian McCaffrey, QB Brock Purdy, and TE George Kittle recapped the team's loss to the Seattle Seahawks, breaking down missed opportunities, areas for improvement, and what it will take to bounce back in the playoffs.

The San Francisco 49ers finished their Week 18 Saturday night contest with a 13-3 loss against the Seattle Seahawks at Levi's® Stadium.

San Francisco 49ers head coach Kyle Shanahan reflected on the loss, highlighted his team's fight, and emphasized the challenge ahead as San Francisco prepares for the postseason.

View game photos from the San Francisco 49ers Week 18 matchup vs. the Seattle Seahawks at Levi's® Stadium.

San Francisco 49ers CB Deommodore Lenoir brings down Seahawk's RB Zach Charbonnet for a 5-yard loss, forcing a Seattle Seahawks punt.

San Francisco 49ers QB Brock Purdy evades the Seahawks' pass rush and hits WR Jauan Jennings on a 13-yard completion for a key first down.

San Francisco 49ers LB Tatum Bethune bursts into the backfield to sack Seattle Seahawks QB Sam Darnold for an 11-yard loss on first-and-goal.

View pregame photos from the San Francisco 49ers Week 18 matchup vs. the Seattle Seahawks at Levi's® Stadium.

Get a first look of Levi's® Stadium before the team's Rivalries matchup vs. the Seattle Seahawks.

Take a look at players who have been ruled out for the San Francisco 49ers Week 18 Saturday night matchup versus the Seattle Seahawks.

View photos as the team arrived to the locker room for their Week 18 matchup against the Seattle Seahawks, presented by Levi's®.

San Francisco 49ers team reporter Briana Jeannel addresses fans' biggest questions ahead of Week 18 vs. the Seattle Seahawks.

Ahead of Faithful Appreciation Night, lifelong fan Donna Bettencourt reflects on decades of devotion, community, and what it truly means to be Faithful.

Broadcast and streaming information for the San Francisco 49ers Week 18 matchup against the Seattle Seahawks at Levi's® Stadium.

San Francisco 49ers TE George Kittle highlighted the performances of TE Jake Tonges and WR Jauan Jennings, reflected on past matchups against the Seattle Seahawks, and discussed the team's postseason run.

The San Francisco 49ers released their latest injury updates headed into the Week 18 Saturday night contest versus the Seattle Seahawks.

The San Francisco 49ers stay home for Week 18 as they host the Seattle Seahawks at Levi's® Stadium.

San Francisco 49ers head coach Kyle Shanahan provided updates on TE George Kittle and WR Ricky Pearsall, discussed the team's injury status, and previewed the team's Week 18 matchup against the Seattle Seahawks.

Take a look at the standout moments from 49ers practice as they prepare for their Week 18 matchup with the Seattle Seahawks.

KNBR's Guy Haberman joins 49ers team reporter Briana Jeannel to recap the 49ers Week 17 "Sunday Night Football" win vs. the Chicago Bears, with a postgame interview with S Ji'Ayir Brown, plus John Boyle from the Seattle Seahawks previews the Week 18 matchup.

KNBR's Guy Haberman joins 49ers team reporter Briana Jeannel to recap the 49ers Week 17 "Sunday Night Football" win vs. the Chicago Bears, with a postgame interview with S Ji'Ayir Brown, plus John Boyle from the Seattle Seahawks previews the Week 18 matchup.

San Francisco 49ers QB Brock Purdy reflected on past games, embracing his style, and how fostering connections with teammates like WR Ricky Pearsall and WR Jauan Jennings have shaped his growth this season.

Kyle Shanahan discusses the 49ers Week 17 win against the Chicago Bears, sharing injury updates on RB Christian McCaffrey, and highlighting OL Austen Pleasants and the defensive line depth.

Watch the NFL's official Week 18 game preview for Seattle Seahawks vs. San Francisco 49ers.

Find out where the San Francisco 49ers landed in the latest set of NFL power rankings according to several national outlets following their 42-38 victory over the Chicago Bears.

San Francisco 49ers head coach Kyle Shanahan discussed player availability, preparation on a short week, and the team's mindset as the 49ers continue their push toward the postseason.

Saturday night celebrates the Faithful as the 49ers host the Seattle Seahawks in primetime for the final regular-season game. The NFC West crown and the No. 1 seed are on the line.

Week 18 is set with the 49ers hosting the Seattle Seahawks on Saturday, January 3 at 5 p.m. PT at Levi's® Stadium on ABC and ESPN, with the NFC West title and the conference's No. 1 seed on the line.