Sobers all prowling grace and feline elasticity, with his 360-degree batswing and three-in-one bowling; [whereas Kallis all looming bulk and latent power, constructed like a work of neo-brutalist architecture. ... Yet what they are just as many opposites of are their respective eras. Sobers was the most explosive cricketer of a more staid age, the more mercurial because of the orthodoxy and rigidity around him; Kallis is the most stoic and remorseless cricketer of an era more ostentatious and histrionic. ... Sobers was a cavalier among roundheads; Kallis has steadily become a roundhead among cavaliers.