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San Francisco 49ers DE Arik Armstead joins "Good Morning Football" to discuss the Niners' 2019 season and previews their potential for 2020.

San Francisco 49ers defensive tackle Arik Armstead reflects on how 49ers are adjusting for virtual offseason.

The San Francisco 49ers defense recorded three sacks and a pair of interceptions against the Green Bay Packers. Check out the unit's best plays from the NFC Championship Game.

Watch the highlight of the Green Bay Packers and the San Francisco 49ers in the 2019 NFC Championship Game.

Watch the highlights of the Minnesota Vikings and the San Francisco 49ers in the 2019 Divisional Round.

Watch the best plays from the San Francisco 49ers defense in a win against the Minnesota Vikings in the 2019 Divisional Round.

San Francisco 49ers defensive end Arik Armstead beats Brian O'Neill to sack Kirk Cousins for big loss.

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

Watch the Green Bay Packers vs. San Francisco 49ers highlights from Week 12 of the 2019 season.

San Francisco 49ers defensive end Arik Armstead loops around edge for big sack.

Watch the highlights from the San Francisco 49ers home win against the Arizona Cardinals in Week 11 of the 2019 NFL regular season.

San Francisco 49ers defensive lineman Arik Armstead engulfs Arizona Cardinals rookie quarterback Kyler Murray for a monstrous third-down sack.

Watch highlights from the Week 8 game between the Carolina Panthers and the San Francisco 49ers.

Watch the best plays by the San Francisco 49ers' dominant defense during Week 7.

Watch the highlights from the Week 7 matchup between the San Francisco 49ers and the Washington Redskins.

San Francisco 49ers defensive lineman Arik Armstead slips through two Washington Redskins blockers for a MAJOR third-down sack.

NFL Network's Steve Wyche, Michael Silver and Daniel Jeremiah discuss the San Francisco 49ers' 5-0 start to 2019.

Watch the best reactions from San Francisco 49ers defensive coordinator Robert Saleh after his team's dominant win over the Los Angeles Rams in Week 6.

Watch the highlights from the San Francisco 49ers road win against the Los Angeles Rams in Week 6 of the 2019 NFL season.

Quack attack! Former Oregon Duck defensive linemen Arik Armstead and DeForest Buckner combine to help the San Francisco 49ers force a key turnover.

Watch the best plays from the Week 8 matchup between the San Francisco 49ers and Arizona Cardinals.

Watch the best plays from the Week 7 matchup between the Los Angeles Rams and San Francisco 49ers.

San Francisco 49ers defensive lineman Arik Armstead sacks Los Angeles Rams quarterback Jared Goff for a loss of 9 yards.