China's national coach Arie Haan was a notable spectator - one of only 380 - as Hong Kong's top two sides continued their neck-and-neck race for the league title last night. Haan witnessed comfortable victories for league leaders Happy Valley and Sun Hei, although he was long gone by the time the latter's game with Fukien was interrupted by a 10-minute power cut in the Mongkok Stadium area. The Dutchman was cagey about his spying mission, ahead of China's World Cup qualifier in Hong Kong on March 31, claiming there was little to learn despite the presence of 11 possible Hong Kong national team players on the pitch for the two matches. 'To look is not so important,' Haan claimed. 'There's a big difference between watching the clubs and the national teams.' However, the set-piece skills of Cheung Sai-ho will not have escaped Haan's notice, as the midfielder rescued Happy Valley by creating two goals from dead-ball situations in their 3-1 win over Sunray, taking the pressure off his team after the dismissal of Li Chun-yip for a second bookable offence in only the 33rd minute. Cheung provided the 44th-minute corner that Barnes Ezeh headed home, and the 54th-minute free-kick met decisively by the cranium of Roger Batoum, goals that added to Ambassa Guy's 11th-minute header. 'It was difficult playing for 60 minutes with 10 men, but Cheung's set pieces helped us,' said Ambassa. 'Cheung is playing better. He's getting fitter. That's good for the team, because he's a good player. We have big guys in our team and we work on our set pieces. We're strong in the air with me, Roger Batoum, Steve [Barnes Ezeh], Martin Jancula and Lai Kai-cheuk.' Sunray, clearly missing the aerial ability of talented young goalkeeper Wei Zhao, who has been called into training with a Jia B team, formerly Guangzhou Xiangxue, who will play under the Sunray banner this year, replied through Song Mofen in the 69th minute, and lost Bi Donghai to a second caution in the closing minutes. 'Happy Valley are all big, tall, strong guys,' said Sunray coach Zhou Dayu. 'At corners and free-kicks their height and strength is a big threat, especially because their timing is very good.' Set pieces were also important in Sun Hei's 3-0 victory over struggling Fukien, which leaves this season's League Cup winners trailing the side they beat in the final, but only on goal difference. Sun Hei's giant Brazilian defender Carlo Andre Hartwig had a hand in both goals, hooking a half-cleared corner back in for Wong Chun-yue to head home after only eight minutes. Hartwig then miscued a far-post header from another corner in the 61st minute, straight on to the head of Julius Akosah. Akosah turned provider for Sun Hei's only goal from open play, squaring for Chu Siu-kei to side-foot home seven minutes after the lights came back on and 10 minutes from time. 'The light was very good,' laughed Sun Hei coach Koo Luam Khen. 'I would say it was a comfortable victory. But we lost concentration and discipline after the first 15 minutes. The players tried to do too much. We should have scored one or two more. We had a couple of very good chances near the end.'