New on SI: Andrew Luck Looks Like Andrew Luck Again

There were times when he wondered if he’d ever play again, but 19 months removed from his last pass in an NFL game the Colts QB looks like he never went away. How he got to this point. Plus, mail on why it’s time to get nervous about the Khalil Mack holdout, outlooks for the Chiefs, Bears and Browns, and a Comeback Player of the Year darkhorse