Chinese prodigy Pan Zhanle became the first Asian swimmer to break the 47-second mark in the 100 metres freestyle at the Asian Games on Sunday, while North Korea celebrated its return to major competition with a medal in the judo. Pan stormed to gold in the Hangzhou pool with a scintillating time of 46.97 seconds, the fifth fastest ever, announcing himself as a major contender in the blue-riband event a year out from the Paris Olympics. For all that, the 19-year-old's disappointed reaction was almost as remarkable as his swim. "I think it was so-so. I had my eyes on…