1000 Burpees Challenge Crossfit athletes and MMA fighters

[The 1000 BURPEES CHALLENGE @ Duncan’s Training Center] 1 burpee.., 2 burpees.., 1000 burpees workout. Crossfit exercises! In support of Spieren voor Spieren, a Dutch charity that supports children dealing with muscle atrophy, several Crossfit athletes and mma fighters accepted the 1000 burpee challenge. Each person did 1000 burpees for charity.