Xiangxue Sun Hei maintained their unbeaten record in the AFC Cup group stage and moved a step closer to the last eight after defeating Negeri Sembilan of Malaysia 2-0 in group D at Mong Kok Stadium last night. It was the third straight victory for the SAR side, and Sun Hei now only need one more win in the remaining three matches to reach the knock-out stage. But Happy Valley suffered a 3-1 defeat from home side Mahindra United of India in group E last night. With only three points from three outings, Valley face a tough task to reach the next stage. 'We did pretty well tonight with a good start. The early goal has given us a lot confidence,' said Sun Hei coach Koo Luam Khen.