Kittle vs. Wagner, Warner vs. Wilson and other matchups to watch in the Week 17 divisional contest between San Francisco and Seattle.

Here are five key matchups that could decide the 49ers and Cardinals second contest of the season. 

Let's take a look at the stats that have been key to the 49ers undefeated start.

Kyle Shanahan provided injury updates ahead of the 49ers Week 7 matchup against the Redskins.

After six weeks of football, find out where Pro Football Focus lists the 49ers defense. 

Trent Taylor, Jalen Hurd and Jimmie Ward are OUT and several 49ers are questionable heading into the Week 1 contest against the Buccaneers.

Jimmy Garoppolo and the 49ers starters bounced back in the Week 3 "dress rehearsal" against the Chiefs.

The 49ers held their final practice ahead of their preseason opener against Dallas on Saturday.

San Francisco's offense highlighted a physical session on Wednesday.

San Francisco's pass catchers "had a day" during Saturday's session.

Notes and takeaways from the 49ers first padded practice of camp.

Addressing the top uncertainties that the 49ers face heading into 2019 training camp.

The 49ers recent roster moves earned a perfect grade in free agency from Bleacher Report.

Who was the team's MVP? Who has the chance to improve the most in 2018? Our writers discuss.

The 49ers dominated the Rams in Week 17 to finish the season on a five-game winning streak.

Follow along here for news, notes and highlights in the 49ers Week 17 season finale against the Los Angeles Rams.

Pro Football Focus grades Jimmy Garoppolo and other 49ers top performers in the Week 16 victory over the Jacksonville.

The 49ers upset the Jacksonville Jaguars, 44-33, behind standout performances from Jimmy Garoppolo and several rookies.

Follow along for news, notes and highlights as the 49ers look to upset the Jaguars in Week 16.

Pro Football Focus grades Jimmy Garoppolo and other 49ers top performers in the Week 15 victory over the Tennessee Titans.

Take a look at numbers and milestones from the 49ers Week 14 win over the Houston Texans

Follow along here for news, notes and highlights from Houston as the 49ers look for their second-straight win.

The San Francisco 49ers won their second-straight game behind a standout performance from Jimmy Garoppolo.

Playing time takeaways including Kyle Juszczyk seeing a season-high 39 snaps against the Bears in Week 13.

Jimmy Garoppolo and Robbie Gould powered the 49ers to their second win of the season against the Chicago Bears in Week 13.

NFL Network's Brian Baldinger breaks down the 49ers defensive attack in the NFC Divisional Round victory over the Minnesota Vikings.

It was offense vs. defense in this edition of 49ers Versus presented by Black Oak Casino. See who came out on top in a best 2-out-of-3 game of flip cup tic-tac-toe.

Watch the best defensive plays from the San Francisco 49ers during the 2019 regular season.

San Francisco's cornerback broke down key plays from the 49ers win over the Los Angeles Rams and discussed the team's mindset heading into a crucial Week 17 matchup.

Keiana Martin and K'Waun Williams broke down George Kittle's "Saturday Night Football" performance, naming him the Week 16 'Yahoo Fantasy Performer of the Game.'

Williams reviewed some of his cornerback-leading four forced fumbles during his 2019 campiagn.

Take a look at the reactions from members of the 49ers as they unboxed their personalized cleats for the 'My Cause My Cleats' campaign.

The 49ers teamed up with Martha's Kitchen to serve a Thanksgiving dinner to those in need.

K'Waun Williams reacted to his teammates campaigning for him to be added to the Pro Bowl ballot, broke down the origins of his nickname and his affinity for spearfishing in this week's Toyota 1-on-1.

Watch K'Waun Williams sack Russell Wilson, Fred Warner force a fumble and DeForest Buckner scoop the ball up and score his first-career touchdown against the Seattle Seahawks from every angle with True View technology powered by Intel. Multiple high-resolution cameras render thrilling, slow-motion replays and highlight reels.

After K'Waun Williams strip-sacked Russell Wilson, Warner forced out the loose ball, Buckner recovered it and took it all the way for a 49ers touchdown.

Williams knocks the ball loose and Buckner recovered.

Laken Tomlinson and Keiana Martin broke down 49ers defensive performance against the Redskins in Week 7.

Watch the top highlights from the 49ers victory over the Cleveland Browns on Monday Night football in Week 5.

Williams was in the right place at the right time to pick off the bobbled pass.

The 49ers held a fashion show featuring guests representing all cancers who have either battled or are currently battling cancer as they modeled apparel donated by Levi's® alongside 49ers players.

Find out which five players have played the best after the first four games of the season according to Pro Football Focus.

K'Waun Williams, Robbie Gould and other 49ers joined a class of students on a 49ers EDU field trip to Levi's® Stadium to get them excited about STEAM education with a structural engineering project and the program's movement lab.

Watch K'Waun Williams intercept a Mason Rudolph pass from every angle with True View technology powered by Intel. Multiple high-resolution cameras render thrilling, slow-motion replays and highlight reels.

K'Waun Williams, Dee Ford, Nick Bosa and George Kittle broke down the Week 3 win over Pittsburgh to head into the bye week undefeated.

Watch the top highlights from the 49ers victory over the Pittsburgh Steelers in Week 3.

Williams intercepted a pass intended for JuJu Smith-Schuster to set up the 49ers touchdown drive in the third quarter.

Warner punched the ball out from Buccaneers tight end O.J. Howard and Blair III recovers the loose ball.

Richard Sherman, George Kittle, Marquise Goodwin and more shared secrets and competed in challenges during a round of "49ers Truth or Dare."

Williams analyzed the 49ers improved defensive line and spoke about his expectations entering into his third season in San Francisco.