One of the greatest fight atmospheres this writer ever experienced was an August 2010 fight at the Prudential Center in Newark, New Jersey, which was full of Polish flags and chants as Tomasz Adamek outpointed Michael Grant.

Why do I mention that? Because this bout is at the very same venue and is bound to also have an enjoyable atmosphere. The main event is between Vito Mielnicki, an American of Polish background who hails from nearby Roseland, and Kamil Gardzielik, who is from Poland. Plus the co-feature is an all-Polish affair.

Vito Mielnicki vs. Kamil Gardzielik is on Saturday, June 21. The stream will begin at 6:30 p.m. Eastern Time (11:30 p.m. BST). 

What channel is Vito Mielnicki vs. Kamil Gardzielik on?

Vito Mielnicki vs. Kamil Gardzielik will stream on ESPN+.

Where is Vito Mielnicki vs. Kamil Gardzielik?

The fight is taking place at the Prudential Center in Newark, New Jersey.

Who is Vito Mielnicki?

Mielnicki, 20-1-1 (12 KOs), is a 23-year-old in his second bout at middleweight after a few years at 154lbs. He moved up thinking he would be stronger at 160, only to fight to a draw with the 21- Connor Coyle in February on the undercard of Keyshawn Davis’ title win over Denys Berinchyk. Mielnicki says he wasn’t happy with his performance against Coyle but feels he deserved the victory.

The draw ended a 12-fight win streak dating back to a majority decision loss to the 6-2 James Martin in April 2021.

Who is Kamil Gardzielik?

Gardzielik, 19-0 (4 KOs), is a 32-year-old who is fighting for the first time in 2025. Last year, he won an eight-round unanimous decision over the 26-25-2 Pavel Semjonov and a six-round majority decision over the 4-14 Lukasz Barabasz.

What other fights are on the undercard of Vito Mielnicki vs. Kamil Gardzielik?

In the co-feature are a pair of unbeaten heavyweights – Damian Knyba and Marcin Siwy – both hailing from Poland.

Knyba, 15-0 (9 KOs), is a 29-year-old who now lives in New Jersey. He fought just once in 2024, defeating the 16-6 Richard Lartey Harrison via third-round TKO in November. Knyba then returned quickly, stepping in the ring this past February, though it was a step backward in terms of level of competition – he was facing Andrzej Wawrzyk, who had previously been knocked out by Harrison, whom Knyba had just knocked out. Knyba beat Wawrzyk via TKO3.

Siwy, 25-0-1 (12 KOs), is a 34-year-old who hasn’t fought in nearly three years, dating back to a draw with the 11-26-2 Kamil Sokolowski in September 2022. 

Also on the undercard is a bout between middleweights Jahi Tucker, 14-1-1 (6 KOs), and Lorenzo Simpson, 15-2 (9 KOs), in a match that follows a dispute about which of them got the better of the other in a sparring session; and a fight between junior welterweights Brandun Lee, 29-0 (23 KOs), and Elias Damian Araujo, 22-5 (9 KOs).

The full list of undercard fights can be seen on BoxRec.

David Greisman, who has covered boxing since 2004, is on Twitter @FightingWords2. David’s book, “Fighting Words: The Heart and Heartbreak of Boxing,” is available on Amazon.