WATCH Manny Pacquiao whack the pads with Freddie Roach like no other 40-year-old can

Freddie Roach pads 40-year-old Manny Pacquiao ahead of Keith Thurman clash

Boxing's only eight-division world champion slams the pads with trainer Freddie Roach ahead of his July 20 showdown with Keith Thurman at the MGM Grand in Las Vegas .

The 40-year-old shows onlookers that age is just a number as he displays blisteringly fast hand speed and footwork.