New Delhi, Feb. 2 -- Catching them young in sports was passe decades ago. Tiger Woods swung a club at three, and since then it has been more like 'catch 'em very young'. For women's tennis, which boasts of a 16-year-old Martina Hingis as its youngest Grand Slam winner of the Open Era, the real stories of adventure belong to prodigies with roots in Russia whose racquets have hit the high notes, invariably in the US....