Ready to step outside your comfort zone... and up onto a plyo box? This super spicy power-building workout is tough and will challenge you in ways the most grueling long run can’t—and that’s on ...

The fourth workout of this seasons CrossFit Open has been announced, and our first piece of advice for 20.4 is this: start and . You'll be doing box jumps, single-leg squats, and clean and jerks.