Day one of the ADCC Worlds 2017 was fought today at Metro Arena, Espoo, Finland. MMAViking.com contributor Jarno Juutinen was matside to capture the action, including Finn Elvira Karppinen‘s huge upset of current ADCC gold medalist Mackenzie Dern, plus Gordon Ryan‘s defeat over Dillon Danis, plus much more! Check out the pictures below.