What happened: NFL insider Jordan Schultz said on a podcast that the San Francisco 49ers and Chicago Bears have been connected to pass rushers Josh Sweat, Khalil Mack and DeForest Buckner. Schultz projected 12 to 20 trades across the league and said he would be shocked if San Francisco and Chicago do not complete a deal.

Why it matters: San Francisco seeks pass-rush help after falling 29-20 to the 3-4 Atlanta Falcons on Oct. 25, when Atlanta consistently pressured Kyle Shanahan's offense with a four-man rush. The 0-6 Los Angeles Chargers have drawn trade inquiries with the 35-year-old Mack in the final year of his contract, while Buckner previously played for the 49ers from 2016 through 2019. Meanwhile, the 5-2 Bears have won two straight behind quarterback Caleb Williams and are also looking to bolster their defensive front.

What to watch: San Francisco general manager John Lynch and Chicago's front office have until the Nov. 10 NFL trade deadline to finalize any defensive additions.