Paulo Costa and Khamzat Chimaev got into a heated back-and-forth at the UFC Performance Institute. Ahead of his UFC 279 headliner against Nate Diaz (20-13 MMA, 15-11 UFC) on Saturday, Chimaev (11-0 MMA, 5-0 UFC) confronted Costa, who was training with Diaz’s teammate Jake Shields . The pair traded barbs and Chimaev had to be restrained by his team. Costa (13-2 MMA, 5-2 UFC ) posted a reaction on his YouTube channel after the altercation and accused Chimaev of being scared.
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