Canelo Alvarez and Kamaru Usman have gone back and forth after the UFC champion's manager acussed the boxing star of being a "chicken".
Usman, who is the UFC pound-for-pound No.1 fighter, has been calling for a fight with Alvarez since defending his welterweight title against Colby Covington last year. 'The Nigerian Nightmare' has pushed harder for the fight recently and wants to fight Alvarez this September.
Alvarez moves back to up to light heavyweight for the first time in three years next weekend when he challenges Dmitry Bivol for the WBA title. If things go to plan for the Mexican, he is expected to face Gennady Golovkin in a trilogy fight later this year.
