Manny Pacquiao's return to the ring at the weekend after a four-year hiatus marked the latest example of a boxer well past his prime who could not resist the temptation of the squared circle and a chance to add to his competitive legacy.

Mario Barrios, left, and Manny Pacquiao pose after fighting to a majority draw in a welterweight title boxing match on Saturday in Las Vegas.

Current and former world boxing champions couldn’t believe Manny Pacquiao’s comeback against Mario Barrios ended in majority draw on Sunday night (Manila time) at MGM Grand in Las Vegas. Many believe the 46-year-old Pacquiao clearly won,