Thai weightlifter Sarat Sumpradit eats up to 10 egg whites for breakfast, works out four hours a day, and is banned from his smartphone at night as his training shifts into high gear for the world championships.However, the muscle-bound 25-year-old has a problem: Thailand is under a self-imposed ban from weightlifting for doping, meaning the hosts may be unrepresented at next month's world championships on home turf in Pattaya.After nine Thai lifters were suspended following drug tests,