George Kambosos still carries the mindset of challenger into his four-belt unification with Devin Haney | CBS Sports Headlines George Kambosos still carries the mindset of challenger into his four-belt unification with Devin Haney Despite holding three of the four recognized titles in the division, Kambosos still fights with a … Continue reading George Kambosos still carries the mindset of challenger into his four-belt unification with Devin Haney