Johnny Fisher Headlines Zuffa Boxing 11 at London's Copper Box

Zuffa Boxing 11 rolls into London's Copper Box Arena on Saturday, September 26, and the main event is a heavyweight scrap with plenty riding on it. Johnny Fisher, the 14-1 British favorite with 12 of those wins coming by knockout, takes on Belgium's Michael Pirotton, who arrives at 12-2 with six stoppages of his own.

The math tells you what to watch for. Fisher's 12-KO haul against 14 wins means he's stopped roughly 86 percent of the men he's beaten. Pirotton, by contrast, has a finish rate closer to 50 percent — a fighter who's had to grind through more rounds than Fisher typically bothers with.

The Matchup on Paper

That single blemish on Fisher's ledger is the interesting wrinkle. He's 14-1, so he's tasted defeat once already, and how a heavyweight responds to a first loss usually tells you more than a string of easy wins. This is a chance to remind everyone what the hype was built on.

Pirotton is the awkward road opponent here — two losses on his record, but experienced enough to have gone the distance repeatedly. His job is simple: drag Fisher into the later rounds and turn a knockout artist into a man who has to think.

For Fisher, fighting at home in London, the pressure cuts both ways. The Copper Box crowd will be firmly behind the local man, and that support tends to lift a puncher early. It can also make a slow start feel like a crisis.

When and Where to Watch

The card kicks off with prelims at 5pm BST, with the main card following at 7pm BST. UK viewers get the full run of bouts live, building toward the heavyweight headliner.

Stateside, the whole event streams on Paramount+ starting at 12pm ET / 9am PT. That's a friendly enough slot for US boxing fans who don't want to be up at unsociable hours chasing a London card.

What's at Stake

Neither man is ranked, so this isn't about title shortcuts. It's about momentum and positioning. A convincing win — especially a stoppage — keeps Fisher's build intact and pushes him back toward the conversations that matter in a heavyweight division always hungry for fresh contenders.

For Pirotton, an upset in enemy territory would be the kind of result that rewrites his career overnight. A 12-2 fighter beating an unbeaten-at-home favorite doesn't stay under the radar for long.

The likeliest script is Fisher looking to close the show early, leaning on the power that's carried him this far. But Pirotton has been the distance before, and a puncher forced to box is always the fight worth showing up for. First bell in London is set for Saturday night.