Boxing insiders are becoming increasingly concerned at reports suggesting Manny Pacquiao is preparing to return to the sport aged 46 against the current WBC welterweight world champion Mario Barrios,

Manny Pacquiao — the first boxer to win championships in four different weight classes, boxing's only eight-division champ, and the only boxer to notch world titles across four decades — is slated to un-retire, at age 46, for a crack at another World Boxing Championship belt, per Andreas Hale of ESPN.