“Head coach Kyle Shanahan confirmed Monday that defensive lineman Nick Bosa suffered a torn ACL in his right knee during Sunday's win over the Arizona Cardinals. Bosa will undergo season-ending surgery,” 49ers.com’s Briana Jeannel wrote.

With Nick Bosa sidelined, the 49ers are predicted to trade for a four-time Pro Bowler to strengthen the pass rush. The San Francisco 49ers are 5-3 with a Week 9 matchup against the New York Giants. They sit in third in the NFC West, behind the Los Angeles Rams and Seattle Seahawks.

As ESPN did a trade primer for every team, Schatz chose left guard as the key position of need for the 49ers. Left guard Connor Colby, a seventh-round rookie, ranks last among all qualified guards in pass block win rate (84.3%)

The Dallas Cowboys and San Francisco 49ers are thought to be set for some trade business ahead of the deadline.

D line reinforcements, Keion White in, Clelin Ferrell in, Yetur Gross Matos trending up and Bryce Huff tracking for next week.

The New York Jets are likely going to be some of the bigger sellers in the NFL at the trade deadline this season with All-Pro linebacker Quincy Williams sitting

Yes, the 49ers acquired a pair of defensive linemen earlier this week. But neither is exactly the edge pass rusher the 49ers currently lack.

ESPN's Peter Schrager believes the 49ers should pursue a trade for Bengals star Trey Hendrickson after acquiring Keion White from the Patriots.