New on SI: Spending a Season on the Bench Has Already Paid off for Chiefs QB Patrick Mahomes

It only took a few plays against the Chargers for Chiefs QB Patrick Mahomes to show off what he’d learned in his season as a backup—and how there’s still plenty of room for positive growth. Also, five players to watch after an eventful Week 1, a few names to follow in college football on Saturday and answering your questions.