Knyba, 15-0 (9 KOs), has been building a following in New Jersey in recent years, having moved to Warren from his hometown of Bydgoszcz, Poland, several years ago. Although the 6ft 7ins big man had a more acrimonious relationship with his previous opponent – a Polish fighter named Andrzej Wawrzyk, whom he knocked out in three rounds – Knyba and Siwy are more respectful of each other.