According to a report by Deadspin, the recent announcement of Floyd Mayweather's reemergence from retirement to face Manny Pacquiao in a rematch of their underwhelming 'mega-fight' in 2015 is hard to justify. The 41 year-old Mayweather last appeared in a reportedly farcical fight against UFC star Conor McGregor, while the 39 year-old Pacquiao won a WBA belt in his last fight by knocking out Lucas Matthysse.