Patrick Mahomes suffered a torn anterior cruciate ligament in the closing moments of Kansas City’s loss to the Los Angeles Chargers at Arrowhead Stadium last week, a blow that all but ended his decade-long playoff streak and forces Kansas City to consider a major rebuild and a new offensive identity without its three-time Super Bowl MVP under center.Week 15 produced a rash of other season-altering injuries and upset results — including a feared ACL for Micah Parsons, multiple starter losses for Green Bay, the Los Angeles Rams and Denver Broncos clinching postseason spots, Bo Nix and Trevor Lawrence delivering breakout performances, and ripple effects that effectively eliminate contenders and reshape the run toward the Super Bowl.