Troubled champions Shenzhen Jianlibao have snapped their nine-match winless streak in the Chinese Super League, posting a 1-0 victory away to Shenyang Ginde yesterday. But they didn't grab the winner until midfielder Zhou Ting's 30-metre drive was deflected into the back of the net with only five minutes left, securing maximum points for the first time after 10 games this season. The hard-fought win, however, did little to dilute the controversy at the club: the sport's domestic governing body has launched an investigation into allegations that some Shenzhen players, led by China captain Li Weifeng and striker Li Yi, acted 'thuggishly' against recently sacked head coach Chi Shangbin and, more seriously, were alleged to have been involved in match-rigging. The Chinese Football Association (CFA) will send a three-member task force, headed by a deputy president of the body, to Shenzhen to conduct a full inquiry. If the charges are found credible, the Lis could face tough disciplinary measures. In fact, the CFA has already hinted that Li Weifeng could be ruled out of a national training camp starting from the end of the month for the latest incidents. The camp is intended to prepare the Chinese national team for their first home game this year, on June 20 against Costa Rica, in Changsha, Henan province. The complaints were raised by Chi himself, who got the pink slip on Tuesday, apparently as a result of the reigning champions' dismal run. 'In our defeat to Sichuan Guancheng [in the seventh round], one of our players told a Guancheng defender after we got a corner: 'Don't bother to mark me, I will never put the ball into the goal ... you should mark our foreign teammates',' Chi said. All Chi's proteges left the club after he was replaced by an interim coaching group led by Guo Ruilong. In other matches yesterday, Beijing Hyundai beat Chongqing Hyundai 1-0 and Shandong Luneng battled to a goalless draw with Qingdao Zhongneng.