AB de Villiers of South Africa set a new world record in cricket when he took only 31 balls to smash the fastest century in one-day internationals against West Indies at The Wanderers in Johannesburg on Sunday. The previous quickest was set by Corey Anderson of New Zealand off 36 balls against the same opposition in Queenstown a year ago.  He finally scored 149, including 16 sixes and nine fours, from just 44 balls.