Authors:

I actually play sports better when I'm mad. Some players don't play better when they're mad. They lose their sense of where they're at. I have a tendency to do better when I'm under pressure.

"Kevin Costner Talks DRAFT DAY, His Career, What We Can Learn from the Movies, How GIANT Influenced His Outlook on Life, and More". Interview with Sheila Roberts, collider.com. April 7, 2014.
I actually play sports better when I'm mad. Some players don't play better when they're mad. They lose their sense of where they're at. I have a tendency to do better when I'm under pressure.