The NFL has made its final call on San Francisco 49ers linebacker Dre Greenlaw, and it's not the news the team was hoping for. After a heated incident during Sunday's matchup against the Seattle Seahawks, Greenlaw's one-game suspension has been upheld following an appeal, meaning he'll be sidelined until Week 7.

The trouble started in the second quarter when Greenlaw was flagged for unnecessary roughness after a late hit on Seahawks quarterback Sam Darnold. The situation escalated when Greenlaw then head-butted Seattle linebacker Ernest Jones IV, leading to his ejection after a league review. The NFL handed down a one-game suspension without pay, and on Tuesday night, hearing officer James Thrash confirmed the punishment.

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49ers head coach Kyle Shanahan had hoped the appeal process would go differently, saying, "Hopefully the appeal process can go better tomorrow, and we can get it rescinded. But got to wait to see how that goes." Unfortunately for San Francisco, that hope didn't materialize.

With Greenlaw out for Week 6, the 49ers will lean heavily on Fred Warner, who has been a tackling machine this season. Warner has already racked up 50 tackles and three forced fumbles in just five games, proving why he's considered one of the best in the league at his position.

To fill the void at weakside linebacker, the team is expected to turn to rookie Jaden Dugger. Shanahan praised Dugger's readiness, noting, "Losing a great player and just emotionally our team feels him, for our guys not to waver at all, Dugger did a great job stepping it up. It was huge."

The 49ers will host the Washington Commanders on "Monday Night Football" this week, and they'll need all hands on deck to secure a win without their key defensive playmaker. The suspension also raises questions about potential scheduling changes that could affect the team's preparation.

Greenlaw's absence is a significant blow, but the 49ers have shown resilience before. With Warner leading the charge and Dugger stepping in, the defense will look to maintain its intensity against a Commanders squad that's eager to pull off an upset.

As the team moves forward, the focus shifts to the immediate challenge ahead. The 49ers will need to regroup quickly, and fans will be watching closely to see how the defense adapts without one of its most aggressive playmakers.