What is the fine-grained topic of the following text: As the holiday season ramps up with Christmas just around the corner, twin champions Jermall and Jermell Charlo, plus Willie Monroe Jr. and Tony Harrison discussed their favorite holiday memories and traditions while preparing for their respective showdowns on Saturday, December 22 in Premier Boxing Champions on FOX and FOX Deportes action from Barclays Center, the home of BROOKLYN BOXING™. Only return the topic.
Boxers Jermall and Jermell Charlo, Willie Monroe Jr. and Tony Harrison discussing their favorite holiday traditions while preparing for matches.