Published Oct 13, 2025 • 7 hrs ago

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The San Francisco 49ers announced two roster moves on Monday, a day after their 30-19 loss to the Tampa Bay Buccaneers. The team waived offensive lineman Isaac Alarcón and released offensive lineman Killian Zierer from the practice squad.

The San Francisco 49ers today announced they have waived OL Isaac Alarcon and released OL Killian Zierer from the team’s practice squad.

— San Francisco 49ers (@49ers) October 13, 2025

Alarcón had just completed a six-game suspension for violating the NFL’s policy on performance-enhancing substances.

The 49ers now turn their focus to Sunday’s matchup against the Atlanta Falcons at Levi’s Stadium, as they look to improve on their 4-2 record and maintain their slim lead in the NFC West.

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