MOSCOW, Oct 21 Brazilian mixed martial arts fighter Charles Oliveira stated that » will kill» Russian Islam Makhachev in a duel at the Ultimate Fighting Championship (UFC) tournament. «I will kill this guy,» BT Sport journalist Chamatkar Sandhu quotes Oliveira on Twitter. The fight between Oliveira and Makhachev will head the UFC 280 tournament, which will be held on October 22 in Abu -Dabi. They will meet in a fight for the vacant UFC lightweight title. Makhachev is 31 years old, he has 22 wins and one loss in mixed martial arts. Oliveira is 33 years old with 33 wins and eight losses. At the moment, Makhachev and Oliveira's unbeaten streaks are 10 and 11 fights, respectively.