Damian Knyba (POL) vs Marcin Siwy (POL) | Boxing Fight Highlights | RTD

On June 21, 2025, Damian Knyba defeated Marcin Siwy by RTD in the 8th round in a 10-round heavyweight bout at the Prudential Center in Newark, New Jersey, USA. Knyba controlled the fight with his size, jab, and steady pressure, gradually breaking Siwy down before Siwy’s corner stopped the contest after round 8.