There are few boxing matchups as analytically provocative as a weathered, physically enormous veteran against a slick, unbeaten contender with world-ranking credentials. Jarrell “Big Baby” Miller and Lenier “El Justiciero” Pero provide exactly that at the Fontainebleau in Las Vegas this Saturday — a 12-round WBA heavyweight eliminator where the winner gets a genuine world title shot. Both men need this fight. The Boxing Data numbers tell very different stories about how each has arrived here.
| Date | Saturday, 25 April 2026 |
| Venue | Fontainebleau, Las Vegas |
| Division | Heavyweight (12 rounds) |
| Title | WBA Heavyweight Eliminator |
| Broadcast | DAZN (UK & US) |
Jarrell Miller (27-1-2, 22 KOs) is 37 years old and has been professional since 2009. He is one of the most controversial figures in recent heavyweight boxing — the man who tested positive for three banned substances in 2019 when scheduled to fight Anthony Joshua, costing himself what would likely have been the biggest fight of his life. The ensuing ban set his career back years.
What followed was a resilient, if uneven, rebuild. He was stopped by Daniel Dubois in 10 rounds in December 2023 — the first time he’d been stopped — then produced an entertaining majority draw with Andy Ruiz Jr. in August 2024. Most recently, a hard-fought split decision over Kingsley Ibeh in February showed both the talent that’s still there and the questions that remain. He arrives at WBA #9. At 37 and with a career defined as much by what might have been as what happened, this eliminator represents the last realistic path to a world title shot.
| Record | 27-1-2 (22 KOs) |
| Age | 37 |
| Nationality | American |
| Height | 6’4” / 193 cm |
| Reach | 78” / 198 cm |
| Stance | Orthodox |
Lenier Pero (13-0, 8 KOs) is 32 years old, born in Cuba and now fighting out of Miami. The southpaw has been unbeaten since his 2019 debut, has accumulated 58 professional rounds, and sits at WBA #2 — seven places above Miller in the rankings, despite having less than half the experience. He stopped Jordan Thompson by unanimous decision in November to maintain his unbeaten record, and comes to Las Vegas with a physical profile that makes him dangerous: 6’4”, a 79.1” reach, and the footwork and ring craft of a classic Cuban amateur product.
The question mark over Pero is the same one that hovers over most unbeaten fighters: he hasn’t faced a legitimate contender. Miller, for all his baggage, is the first genuine test.
| Record | 13-0 (8 KOs) |
| Age | 32 |
| Nationality | Cuban |
| Height | 6’4” / 194 cm |
| Reach | 79.1” / 201 cm |
| Stance | Southpaw |
| Miller | Pero | |
|---|---|---|
| Age | 37 | 32 |
| Record | 27-1-2 (22 KOs) | 13-0 (8 KOs) |
| Height | 6’4” / 193cm | 6’4” / 194cm |
| Reach | 78” / 198cm | 79.1” / 201cm |
| Stance | Orthodox | Southpaw |
| WBA Ranking | #9 | #2 |
Jarrell Miller — Last 5
| Result | Opponent | Method | Round |
|---|---|---|---|
| W | Kingsley Ibeh | SD | 10 |
| D | Andy Ruiz Jr. | MD | 12 |
| L | Daniel Dubois | TKO | 10 |
| W | Lucas Browne | TKO | 6 |
| W | Ruben Cardenas | TKO | 4 |
This fight has one overriding tactical reality: Miller will come in significantly heavier than Pero. The weight difference could approach 70–80 pounds, and while that is not unusual at heavyweight, the difference in mobility and punch output that creates is enormous. Pero’s southpaw jab and movement are his primary tools, and against a fighter who relies on closing distance and landing big shots, those tools matter.
But Miller’s record — 22 knockouts across 30 fights — carries genuine warning. He doesn’t need to outbox Pero. He needs one clear connection to change the fight entirely. The Dubois TKO10 showed his chin is not what it was; the Ruiz draw showed he can still operate at high level for 12 rounds when motivated.
The Teddy Atlas concerns circulating this week — questioning Miller’s conditioning and commitment to training — are the most important intangible. The Boxing Data platform can quantify punch output, accuracy, and work-rate. What it can’t always predict is whether a fighter who has had a complicated relationship with professional discipline will show up in peak condition. If Miller is truly fit and motivated, this is closer than the weight disparity suggests. If he isn’t, Pero’s boxing ability will expose him over 12 rounds.
Jarrell Miller wins if:
Lenier Pero wins if:
Odds: Miller 8/13 (-160) · Pero 5/4 (+130)
The market has this as genuinely competitive, and the 5/4 on Pero reflects real belief that the unbeaten Cuban’s skills are sufficient to outpoint a 37-year-old Miller who may not be at his best. On paper, Pero’s technique, footwork, and southpaw stance give him the tools to box Miller into errors over 12 rounds. But Miller’s size, experience, and KO power make him the kind of opponent who can end the fight with one shot.
Conditioning is the deciding factor. A fully focused, fit Miller wins this fight. If the Atlas concerns have any substance, Pero’s boxing ability earns him the decision.
Prediction: Lenier Pero UD — if his conditioning holds over 12 rounds, the southpaw’s craft outpoints a ring-worn Miller.
| Country | Broadcaster | Main Event (approx.) |
|---|---|---|
| United States | DAZN | 11:00 PM ET / 8:00 PM PT |
| United Kingdom | DAZN | 4:00 AM BST (Sun 26 Apr) |
When is Miller vs Pero? Saturday night, 25 April 2026 at the Fontainebleau in Las Vegas. Main event ringwalk approximately 11:00 PM ET.
What is at stake in Miller vs Pero? A WBA Heavyweight eliminator. The winner earns mandatory challenger status for the WBA world heavyweight title.
What are the betting odds? Miller is 8/13 (-160) and Pero is 5/4 (+130). The market sees this as a competitive fight.
What is Jarrell Miller’s controversy? Miller tested positive for multiple banned substances in 2019 ahead of his scheduled fight with Anthony Joshua. He served a ban before resuming his career.
Has Lenier Pero fought anyone significant? Pero enters unbeaten at 13-0 but hasn’t faced a ranked contender at this level before. Miller, for all his baggage, is his first genuine test.
Where can I watch Miller vs Pero? Live on DAZN in both the US and UK.
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