Andy Ruiz Jr Faces Damian Knyba in Newark on September 4

Why This Fight Matters

Andy Ruiz Jr will step into the ring on Friday, September 4, marking his first bout under a Matchroom contract. The event, billed as part of “The Fight,” will take place at the Prudential Center in Newark, New Jersey. The card will air on TNT in the United States and stream on DAZN, co‑promoted by Matchroom and Top Rank.

Ruiz’s Comeback Trail

Since his stunning upset of Anthony Joshua in 2019, the 36‑year‑old former unified heavyweight champion has logged a sparse resume. He lost the rematch six months later, then returned to the ring three times in the 2020s, picking up wins over Chris Arreola and Luis Ortiz before a drawn contest with Jarrell “Big Baby” Miller last August. After more than two years away, Ruiz signed with Matchroom and will now face a Polish‑born fighter based in New Jersey.

Knyba’s Background and Fighting Style

Damian Knyba, a 30‑year‑old boxer listed at 6’7″ and 260 pounds, is slated for his first major showcase under a large promotional partnership. The New Jersey‑based knockout artist posted a 17‑1 record with 11 KOs, most recently suffering a three‑round stoppage loss to Agit Kabayel in Germany last January. He was originally scheduled for an October clash in Poland against Kacper Meyna before the larger opportunity arose.

Support Card Highlights

The main support will feature Vito Mielnicki Jr, a 24‑year‑old prospect who has compiled a 23‑1 record with 13 knockouts. He most recently triumphed over Omar Huerta by a wide decision in April, continuing his upward trajectory after a stint with PBC and FOX. His opponent, Austin “Ammo” Williams, a 30‑year‑old with a 20‑2 mark and 13 KOs, is coming off a one‑sided loss to WBC champion Carlos Adames on March 21.

Under‑card Preview

Williams, though not an elite contender, possesses technical tools that could complicate Mielnicki’s path to superstardom. The middleweight clash is billed as a key showdown, highlighting the depth of rising talent on the undercard. Fans can expect a competitive battle as both men aim to prove they belong among the sport’s next tier.

Future Outlook

With Ruiz attempting to rediscover his knockout power and Knyba looking for a statement win, the Prudential Center event promises high stakes. The co‑promotion between Matchroom and Top Rank signals a new era for Ruiz, while the younger fighters on the card are positioned for breakthroughs. All eyes will be on Newark on September 4 for a night that could reshape the heavyweight landscape.