Mike Perry’s August 29 MMA meeting with Dillon Danis will headline Duel: Arena 1 at the KIA Center in Orlando, Florida, and the debut promotion’s card has added another former UFC name. Jimi Manuwa is set to return from retirement for a heavyweight boxing match against Rashad Coulter on the same event. The booking gives Perry’s headline card another bout involving fighters with Octagon experience, while keeping the Perry-Danis matchup as the central attraction of the promotion’s first show.
The announcement follows confirmation that former UFC fighter Phil Rowe will switch to boxing for an undercard bout. Duel Arena has now revealed Manuwa and Coulter as two further competitors with UFC backgrounds for the August 29 program. For Perry, the additions provide clearer shape to the event beneath his MMA main event with Danis. The card is combining Perry’s headline fight with boxing appearances from former UFC competitors, including Manuwa’s first boxing outing after a lengthy period away from competition. Manuwa said in a post after the announcement that his return had been a long time coming and that he could not say no.

Manuwa joins Mike Perry’s debut-event card
Manuwa’s bout with Coulter is billed as a heavyweight boxing match, not an MMA contest. That distinction matters on a card headlined by Mike Perry in MMA against Danis: the event is presenting different combat-sports formats under one promotion’s first-event banner. The source material identifies Manuwa’s contest as his boxing debut, making the August 29 appearance a new competitive direction as well as a return from retirement. Coulter also has UFC experience. He left the promotion after a 1-3 run, with his last UFC bout ending in a win after he missed weight. Their placement on the card adds a specific matchup to the supporting lineup rather than merely attaching recognizable former UFC names to Perry’s event.
The confirmed timeline gives the Manuwa announcement added context. In 2019, he was knocked out by Aleksandar Rakic in 42 seconds and announced his retirement several days later. On August 7, Duel Arena announced that he would come out of retirement to face Coulter later that month. Manuwa had competed 12 times in the UFC light heavyweight division and headlined two UFC Fight Night events in London. He was once close to a title opportunity against Daniel Cormier before losing an eliminator to Volkan Oezdemir. Those details explain why his addition is notable within the lineup surrounding Mike Perry’s main event, without changing the fact that Perry and Danis remain the announced headliners.
What is confirmed for August 29
Duel: Arena 1 is scheduled for August 29 at the KIA Center in Orlando, Florida. Mike Perry will face Dillon Danis in an MMA bout that headlines the card. Beneath that main event, Manuwa will box Coulter at heavyweight, while Phil Rowe has also been announced for a switch to boxing on the undercard. The available material does not provide further bout details for Perry and Danis, nor does it state additional terms for the Manuwa-Coulter matchup. What is clear is that the card has expanded from its original headline announcement into an event featuring several former UFC fighters in different roles and formats.
- Mike Perry vs. Dillon Danis is the announced MMA main event for Duel: Arena 1.
- Jimi Manuwa vs. Rashad Coulter is the announced heavyweight boxing match on the August 29 card.

| Confirmed card element | Verified detail |
|---|---|
| Main event | Mike Perry faces Dillon Danis in an MMA bout. |
| Newly announced bout | Jimi Manuwa makes his boxing debut against Rashad Coulter at heavyweight. |
Mike Perry remains the focal point of Duel: Arena 1 through his MMA headline bout with Dillon Danis, but the Manuwa-Coulter announcement gives the August 29 card a notable supporting attraction. Manuwa’s return comes after his 2019 retirement and will take place in a heavyweight boxing debut, adding a defined piece of context to the event Perry is set to lead in Orlando.
Sources: Bloody Elbow
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