49ers 2021 90-man roster preview: Linebacker

The 49ers’ pass rush is the tip of their defensive spear, but their linebacking corps is also exceptionally important, and San Francisco is still in search of a third starter.

Fred Warner and Dre Greenlaw both play on passing downs and do an excellent job of controlling the middle of the field – a key to success for modern defenses against quicker, shorter passing attacks. Beyond that the depth chart has a slew of question marks and unproven young players.

Here’s what the 49ers’ depth chart looks like at linebacker going into training camp: