For Japan's unlikely silver medalists, teamwork trumps speed

By Drazen Jorgic RIO DE JANEIRO (Reuters) - The dark horses from Japan may have failed to spoil Usain Bolt's send-off party, but lightening team work helped them pull off a massive shock by upstaging North American sprinting giants to win Olympic silver in the 4x100 meters relay on Friday. On their own, the Japanese sprinters did not stand a chance against the likes of Bolt, American Justin Gatlin or Canada's Andre De Grasse. None of the four Japanese men -- Aska Cambridge, Yoshihide Kiryu, Ryot