"Alien vs. Krusher: Hopkins vs. Kovalev" is a 12-round unification bout for the IBF, WBA and WBO Light Heavyweight World titles, presented by Golden Boy Promotions and Main Events in association with Caesars Atlantic City, Corona Extra, AT&T, Hortitsia Vodka and Mexico, Live it To Believe It!. Ali vs. Abregu is a 10-round welterweight bout promoted by Golden Boy Promotions and Top Rank. The HBO World Championship Boxing telecast begins at 10:45 p.m. ET/PT.