Manny Pacquiao vs Mario Barrios
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With trusted trainer Freddie Roach in his corner, the 46-year-old legend is coming out of retirement to challenge welterweight champ Mario Barrios on Saturday.
And age 38, which is how old Oleksandr Usyk will be when he defends his three heavyweight world titles against 27-year-old Daniel Dubois. Is it better to be young or experienced? We'll soon find out.