Report: McGregor, Mayweather walk-out time 11:15 p.m. ET at earliest

Conor McGregor and Floyd Mayweather will not begin their walks to the ring before 11:15 p.m. ET, and could begin the event even later depending on the length of the undercard Saturday night, sources told MMA Fighting's Ariel Helwani.

The pay-per-view card will feature four fights in total, including the Mayweather-McGregor main event, with the first main-card fight starting at 9:00 p.m. ET.

McGregor, as the underdog, is expected to be the first of the two headline fighters to make his way to the ring.