Floyd Mayweather Jr.

Mayweather will put his 49-0 record on the line in Las Vegas this weekend after opting to come out of retirement to face McGregor in a blockbuster fight that has caught the world's attention.

The American has long been favourite to come out of the bout with a victory given his experience and boxing know-how, but McGregor's unpredictability has seen many backing an upset.

Judge R. Gary Klausner, the same judge hearing arguments in cases filed against the Sony movie studios related to that company's computer hacker attack last year, will decide if the Pacquiao cases are granted class-action status before any trial proceeds.