Conor McGregor finds structure in life rolling into UFC 246

Conor McGregor speaks during a media event for the UFC 246 mixed martial arts bout, Thursday, Jan. 16, 2020, in Las Vegas. McGregor is scheduled to fight Donald "Cowboy" Cerrone in a welterweight bout Saturday in Las Vegas. (AP Photo/John Locher)

LAS VEGAS — Conor McGregor used to train whenever he felt like it, and he stayed up late every night. He would sleep deep into the daylight hours, and he perpetually showed up late for almost any commitment required of a rising mixed martial arts star.