Zayas vs Boots undercard announced with top prospects in action

Ben Whittaker celebrates after beating Braian Nahuel Suarez at the M&S Bank Arena, Liverpool. Picture date: Saturday April 18, 2026. (Photo by Gary Oakley/PA Images via Getty Images) | PA Images via Getty Images

The undercard for Xander Zayas vs Jaron “Boots” Ennis is official.

Top Rank and Matchroom will be co-promoting the card and have decided to feature some of their best prospects on June 27 at the Barclays Center in Brooklyn. The card will stream live on DAZN through either their Ultimate tier or as a pay-per-view.

The main event will see Zayas (23-0, 13 KO) defending his WBA and WBO super welterweight titles against ex-welterweight titlist Ennis (35-0, 31 KO) in a meeting of two of boxing’s most notable rising stars.

Emiliano Vargas, Ben Whittaker return on undercard

• Top Rank’s Emiliano Vargas (17-0, 14 KO) will face Bryce Mills (22-1, 9 KO) in a 10-round super lightweight bout. The 22-year-old Vargas featured with Zayas in Bad Bunny’s Super Bowl halftime performance. The second-generation fighter last fought on February 28. Mills, 24, lost a six-round split decision in his seventh pro fight back in 2021, but has rebounded nicely. It’s a step up for him, and also a big chance to make his own name.

• Matchroom’s Ben Whittaker (11-0-1, 8 KO) will turn around quick after his first round knockout of Braian Suarez on April 18, facing Connecticut veteran (27-2, 20 KO) in a 10-round light heavyweight bout. Rivera, 35, hasn’t fought just once in the last two years, and that most recent outing came in January 2025, so he’s been inactive a while. He has mainly fought at a club level, but he gave Badou Jack a decent scrap at cruiserweight back in 2022, too.