Khabib Nurmagomedov has urged Kamaru Usman to 'smash' heated rival Colby Covington at UFC 268 this Saturday. The pair's UFC Welterweight title rematch will serve as the main event at Madison Square Garden, with Covington wanting revenge after Usman floored him twice en route to a fifth-round stoppage win two years ago.However, Khabib has urged his close friend to win with even more conviction this time around.The two stars share the same manager, Dominance MMA head Ali Abdelaziz, and it was the Egyptian who arranged for Khabib to send a message of goodwill to the 'Nigerian Nightmare' on an episode of UFC Embedded."Really good to see you, brother," said the Russian, who was speaking on FaceTime to Usman while the latter was in a car with.
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