Ultimate Fighting Championship

Conor McGregor to fight in UFC's New York debut Nov. 12

Conor McGregor will try to become the first fighter to hold two UFC belts simultaneously on a night the sport makes a splashy entrance into the last U.S. state to legalize mixed martial arts.

The wildly popular Irish brawler is fighting in the main event for Eddie Alvarez's lightweight belt — one of three title fights on a card with several fights that could easily headline on another night. The UFC wants its Madison Square Garden event on Nov. 12 to top the promotion's biggest cards, especially after UFC 200 in July was marred by doping violations and a lineup that reshuffled several times.

UFC officials planned to meet with reporters Tuesday night at Madison Square...