Of course, one of the most famous trades in NFL history involved these two organizations, with the Chiefs acquiring Joe Montana from the 49ers back in 1993. Montana would go on to lead Kansas City to the AFC Championship game that year, beating the Pittsburgh Steelers and Houston Oilers before losing to the Buffalo Bills.
That win over Houston -- January 16, 1994 -- is the last playoff win for the Chiefs. Yikes. Montana was also at the center of the most hyped game between these squads later in 1994, when Steve Young came to Arrowhead Stadium and was trounced by Derrick Thomas and co., 24-17.
Since then, the teams have continued to share quarterbacks, with the likes of Elvis Grbac, Steve Bono and now Alex Smith wearing both uniforms in their careers. Before Montana it was Steve DeBerg.
Andy Reid also has a connection to the 49ers, despite never having coached them. He has made his money coaching the west coast system, something created by the late, great Bill Walsh, who coached San Francisco from 1979-88 and won three Super Bowls.
The offensive system was actually created by Walsh when he was an offensive coordinator under Paul Brown with the Cincinnati Bengals, but Walsh made it a legacy by the bay when he took over his own team.
Since 1970 when the AFL and NFL merged, these two teams have played 11 times in the regular season with Kansas City winning five times, including the last two meetings by a combined 71-10 score. In the preseason, the Chiefs are 2-5 versus the 49ers.
Correction: 72-10. RT @ArrowheadPride Last 2 49ers-Chiefs games: 71-10 in favor of Chiefs.— Arrowhead Pride (@ArrowheadPride) August 16, 2013
In the last 3 49ers-Chiefs games at Arrowhead, KC has outscored SF by 97 points.— Arrowhead Pride (@ArrowheadPride) August 16, 2013