Glover Teixeira defends his light heavyweight championship against Jiri Prochazka in the main event, which begins at 10 p.m. ET on ESPN+ PPV.
Choi is the UFC's more experienced fighter. He's coming off a loss, but his fights have appeared to be more technically sound.
He's also been out of the ring for six months less than Culibao, who may be suffering from ring rust.