By Tzvi Machlin Former UFC superstar Khabib Nurmagomedov has weighed in on the recently controversy involving UFC fighters Colby Covington and Jorge Masvidal. Suffice it to say, he’s strongly in the anti-Colby camp. Earlier today, Khabib took to Twitter and called on UFC fighters to boycott Covington by not fighting him. Khabib believes that no one has the right to insult a person’s family, as Covington reportedly did. “I think all welterweights should refuse to fight Colby. Just don’t accept fights with him. Let him sit without a fight. It will probably significantly affect him and all fighte…