http://www.ringpolska.pl/grzegorz-pr...i-walki-ze-mna
to quote Golovkin: " Quillin, Murray and Barker didn't accept an offer to step in for Pirog. They were all scared, but they know very well that the would get knocked out. Proksa showed he is a real warrior. He deserves respect, but it won't protect him from my fists. He'll also end up on the canvas"