Could you do 1,000 sit-ups?
Before we get started, just play this song while you read along.
Wait, actually, this will do.
So here's the deal: In order to get in tip-top shape for Southpaw, Jake Gyllenhaal spent EIGHT months training his heart out two times a day, EVERY DAY. And here's the footage that will make you feel things.
You ready for the man bun-sanity?
