Silver: How Christian McCaffrey powers 49ers’ surge with anger and authenticity (paywall)
“I feel free when I’m playing football. I feel like I can completely be myself. And sometimes I am angry, if the play calls for that. But sometimes you need to be patient; sometimes you need to be calm; sometimes you need to be light on your feet and move swiftly. If you’re angry at certain points, running with your head down and pissed off, you could miss the cut. When you’re free you’re able to access every emotion that’s required with the play.