The Chiefs reportedly traded offensive guard Joe Thuney to the Chicago Bears on Wednesday. The decision to trade the All-Pro guard is surprising given that he has been a standout on the Chiefs' offensive line, but with salary cap issues, it was probably in the team's best interests.NFL analyst Sam Monson expressed concern about the Chiefs offensive line. In a post on X, Monson said the offensive line may resemble the 2020 team, that was demolished by the Tampa Bay Buccaneers in Super Bowl LV."Current KC OL: ? - ? - Elite - (V)Good - Average. Worst OL (on paper) since the TB Super Bowl, which caused the whole directional reset. Work to be done," Monson wrote on X.Thuney will likely receive a contract extension with the Chicago Bears before the 2025 NFL season begins.How much cap space did the Chiefs save by trading Joe Thuney?The Chiefs received a fourth-round draft selection in return for Joe Thuney. The offensive lineman is coming off a season where he was the best blocker for quarterback Patrick Mahomes. He made the Pro Bowl and was a First-Team All-Pro with no penalty in 1,115 snaps and didn't allow a sack at all last season.The Bears will pay all of Thuney's $16 million salary in 2025. The Chiefs will take a $10.9 million hit to the dead salary cap space, which does give a little more room. The Chiefs entered the offseason $18.1 million over the salary cap.Kingsley Suamataia is likely the replacement at offensive guard.As for the Bears, this is just the latest move they made to install a new offensive line. The Bears traded for Jonah Jackson from the Los Angeles Rams in exchange for a sixth-round draft pick earlier this week.The Bears are working towards building a solid front in front of second-year quarterback Caleb Williams.