Exactly five years ago, HBO pulled out of the boxing business, which was a shock to the sport.

HBO was a good steward of boxing for much of its time, but its time has come.

It's been said that there's nothing more ridiculous than someone else's love affair, and boxing aficionados have always had a tough time explaining their passion for the sport to outsiders.

HBO’s boxing business shows signs of fatigue HBO’s major high-profile fight between Floyd Mayweather and Manny Pacquiao in May 2015 was a pay-per-view event that was priced at $90 to $100.