There is a fine, fine line between sport and entertainment. In fact, it could be argued the two concepts are so intrinsically linked that one could not exist without the other.

Filipino boxing legend Manny Pacquiao has confirmed he will come out of retirement to fight WBO welterweight champion Jessie Vargas on November 5 in Las Vegas.

Danny Green earned every cent he got in a workmanlike victory over Kane Watts in Melbourne on Wednesday night but still had just enough energy for a dig at the man who could deliver him one final big pay day - Anthony Mundine.

You had to be pretty good to fight the greatest boxer Australia has ever seen, Les Darcy, and Reg Paton did that.

Painful history has taught Danny Green not to get ahead of himself. The 43-year-old is wary that he has to concede age and weight to Kane Watts in their fight for the vacant Australian cruiserweight title in Melbourne on Wednesday night.

Michael Katsidis will plead guilty to a drug possession.

This column has stayed out of the hype surrounding a potential Anthony Mundine-Danny Green rematch, but we can tell you that the fight is on.

A boxing glove designed to lessen impact on the receiving end has been developed in Canberra.

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Solomon Haumono has launched a protest following his knockout loss to New Zealand's Joseph Parker in Christchurch.

WARNING: GRAPHIC IMAGES When Michael Page knocked Evangelista 'Cyborg' Santos to the canvas in Bellator 158, social media was abuzz. Not for the knockout, but rather Page's Pokemon-inspired celebration.

Former UFC heavyweight champion Brock Lesnar has been flagged by the U.S. Anti-Doping Agency for a possible doping violation.

Solomon Haumono's trainer, the man who guided Manny Pacquiao to the top of the fight game, believes the former footballer has as much punching power as legendary heavyweight George Foreman.

Since giving up his electrician wage to focus on being a professional boxer, David Toussaint has had to battle fight cancellations, fluctuating weight classes and mysterious international fighters, but the Canberran is ready for his bout Saturday night.

Muhammad Ali never legally changed his name from Cassius Clay - and lived in an era when he didn't have to, a records search has shown.

UFC President Dana White says the mixed martial arts company has been sold for approximately $US4 billion ($A5.28 billion) to a group of investors led by Hollywood talent agency WME-IMG.

Oh to be Daniel Cormier. The light-heavyweight champion was the headline act for UFC200 in a rematch against his bitter rival Jon Jones, before Jones tested positive for an illegal substance just days before the event.

It makes perfect sense that the sport popularised by surprise outcomes has been checkered all week by unexpected, dramatic happenings setting up UFC 200.

Muhammad Ali's widow asks the public to honour her husband and "be like Ali" by volunteering for 75 hours.