NEW DELHI: Jasleen Singh Saini, a promising Judoka and a potential contender for the Asian Games, tested positive for a banned substance during an in-competition test at the Taipei Open last month, according to sources.The 25-year-old Saini had won a gold medal in the men's 66kg category in the Taipei Asia Open early last month."Yes, he had failed a dope test conducted by an international agency during the Taipei Open. So, he will not be in the Asian Games team," a team coach, who has knowledge of the...