26 Apr /By silverbackmattp/2 Comments/Uncategorized WHAT A WEEKEND! A great week in the Silverback Nation. Since I have not resolved the camera issue yet I thought these pictures tell a great story. Mark roughing it on the beach in Rio with Crossfit Rocinha, sandbag drills on the beach, oh the irony. Throw a CrossFit Challenge with beer and mud bugs and you can count on the Silverback Nation to represent.