Manny Pacquiao spars with his coach Freddy Roach during a training session at the Wild Card Boxing Club in Hollywood, California on April 15, 2015. AFP PHOTO
Top Rank Promotion boss Bob Arum said reigning World Boxing Organization (WBO) welterweight champion Manny Pacquiao should not take Australian challenger Jeff Horn lightly in their upcoming July 2 fight at the Suncorp Stadium in Brisbane, Australia.