Seattle locked up the No. 1 seed in the NFC by suffocating a red-hot San Francisco offense in the regular-season finale.

After missing the final four games of the regular season, the Seattle Seahawks designated second-round rookie Elijah Arroyo to return to practice on Wednesday, the team announced.

Seattle Seahawks quarterback Sam Darnold rips a pass over the middle to wide receiver Jaxon Smith-Njigba who makes an unbelievable adjustment in mid air to haul in the 19-yard catch in Week 18 against the San Francisco 49ers.

Sam Darnold erased one big blemish on his resume when he led the Seattle Seahawks to a 13-3 win at San Francisco in Week 18 that secured the NFC West crown and the NFC's No. 1 overall seed and the first-round bye.

The Seahawks had a prime opportunity to run their version of the ‘Tush Push’ early against the 49ers, so Coach Macdonald needed to explain why they didn't.

Sam Darnold did not get in the way of a dominant performance from his run game and defense. Seattle handled the 49ers in a gigantic game

Seahawks head coach Mike Macdonald didn’t just give a fiery halftime talk in Atlanta — he called his shot on a Rashid Shaheed kickoff-return touchdown, then watched the speedster respond with his best game as a Seahawk in a 37-9 blowout of the Falcons.

Here we'll try to look at and discuss why the Seahawks' defense proved it's the best after shutting down the 49ers offense.

The NFC’s fourth seed is Carolina, the limping South division champion. They lost two in a row to end the regular season but won the division Sunday when Atlanta beat New Orleans to create a three-way tie with the Panthers, Buccaneers and Falcons at 8-9. Carolina won the three-team tiebreaker.

San Francisco 49ers quarterback Brock Purdy is pressured by four Seattle Seahawks defenders to force the incompletion intended for fullback Kyle Juszczyk and broken up by cornerback Riq Woolen in Week 18.

The Seahawks defense thoroughly shut down the 49ers offense, while the offense performed better than the 13 points suggested.