This is the second time that Charles has torn his ACL. He also did in 2011 and missed 14 games. The Chiefs went 7-9 that season.
Over the last three seasons (entering Sunday), the only team more reliant on a player to gain yardage from scrimmage was the Bears with Matt Forte (who had 31.2 percent of their yardage). Charles was second at 30.9 percent.
Charles' 63 touchdowns are the third-most in Chiefs history, trailing Priest Holmes (83) and Tony Gonzalez (76).
He trails only Tony Gonzalez for the most yards from scrimmage in Chiefs history.
Over the last three seasons, no player has gotten into the end zone more frequently than Charles (38 touchdowns).
Charles has 100 yards from scrimmage in 32 games since the start of the 2012 season, tied with Matt Forte for the most in the NFL during that span.
Sunday was Charles’ 100th career game. Among active players, his 53 career 100-yard scrimmage games were 3rd among active players at the time of their 100th career game, trailing Adrian Peterson (61) and Matt Forte (56).
If Charles is out for any significant length of time, the Chiefs will likely make Charcandrick West and Knile Davis their primary running backs. West, who rushed seven times for 31 yards Sunday, has only a dozen carries of experience in his NFL career.
Davis rushed for 463 yards and six touchdowns, averaging 3.5 yards per carry last season. Davis ranked 39th in average yards per carry among the 46 players with at least 100 rushes last season. He has two 100-yard games in his career. They came in back-to-back wins last season against the Dolphins and Patriots.
Not likely to change the offense
The Chiefs are in a tough situation in that they were so highly reliant on their running game. Their starting quarterback, Alex Smith, entered the week last in the NFL in Total QBR this season.