The Charlo Twins Says Both GGG & Canelo are Cowards

[[tmz:video id="0_s9rylny7"]] Jermell & Jermall Charlo say two of boxing's biggest stars are two of boxing's biggest COWARDS ... claiming both GGG & Canelo Alvarez are SCARED OF THE SMOKE the Charlo's bring. Jermell fights at 154 ... Jermall…