Gennady GGG Golovkin and Sergiy Derevyanchenko hold open workouts

Kazakhstan s Gennady GGG Golovkin and Ukraine s Sergiy Derevyanchenko hold open workouts for fans and media ahead of their anticipated matchup. The two will fight for the vacant IBF and IBO middleweight titles on October 5th in Madison Square Garden. Subscribe to RT Sport Like us on Facebook Follow us on Twitter Follow us on Instagram