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49ers Rookie Mykel Williams Out for Season With Torn ACL and Meniscus Tear

San Francisco hits the trade deadline with a depleted pass rush after season-ending injuries to Nick Bosa, Fred Warner.

Overview

  • MRI testing confirmed Williams tore his right ACL and lateral meniscus, and he will undergo surgery that ends his 2025 season with a target return in 2026.
  • The first-round pick was hurt late in the Week 9 win at the Giants when his knee buckled while pressuring quarterback Jaxson Dart at MetLife Stadium.
  • His loss deepens an already battered defense that has also lost Nick Bosa for the year in Week 3 and Fred Warner in Week 6, with Yetur Gross-Matos on injured reserve.
  • San Francisco ranks near the bottom of the NFL in sacks, increasing urgency to explore defensive line help before Tuesday’s trade deadline after adding Keion White and elevating Clelin Ferrell.
  • Bryce Huff, who leads the team with four sacks, is expected to return this week; Williams finishes his rookie year with nine starts, 20 tackles and one sack while playing outside and inside roles.