E40: 86Boxing x Boxing Haven: Boxing Chit 11: Charlo vs Castano - Undisputed | Zurdo | Jack Blackburn

Joshua and Slaven discuss the latest and greatest in the 154 undisputed clashes which saw Jermell Charlo become the first 154-pound male undisputed champion of the four-belt era. Claressa Shields was the first in boxing to become undisputed at the weight. We also talk about Zurdo Ramirez and what may be next. We even get into a little Jack Blackburn.