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Zuffa Boxing 08 Set for June 28 in Las Vegas With De Los Santos–Valenzuela Rematch

The card will stream on Paramount+ and is being billed as a key test of Dana White’s effort to build a sustained boxing pipeline.

Overview

  • Zuffa Boxing 08 is scheduled for Sunday, June 28, 2026 at The Chelsea at The Cosmopolitan in Las Vegas and will stream on Paramount+ with limited tickets remaining.
  • The main event features a rematch between Edwin De Los Santos and Jose Valenzuela, who first met in 2022 when De Los Santos stopped Valenzuela in the third round after both fighters had been knocked down.
  • De Los Santos enters at 17-2 with 15 knockouts and comes off a 45-second stoppage of Elliot Chavez while Valenzuela is 15-3 with notable wins over Isaac Cruz and a 99-91 decision in his Zuffa debut.
  • The co-main pairs undefeated Omar Trinidad with newly signed Jerwin Ancajas, who has moved up to featherweight after a long super flyweight title reign, and the night includes undercard fights such as Cain Sandoval vs. Brandun Lee and a set of prelims.
  • Observers say the promotion will be judged on fight quality, matchmaking and fighter pay as much as ticket sales, with this card intended to show whether Zuffa Boxing can move beyond high-profile signings to a credible, ongoing roster-building operation.