Defender Cristiano Cordeiro has warned his SAR teammates against complacency as they attempt to make it a hat-trick of Guangdong-Hong Kong Cup triumphs today. Hong Kong take a 3-1 lead into the second leg in the People's Stadium in Guangzhou but Cordeiro insisted Guangdong would be a much tougher proposition than in the first encounter. 'Guangdong are famous for being able to play far better at home than away,' said the Brazilian, who netted a brace in Hong Kong's first-leg win. 'They're well known for their strong physical ability and their speed even though they failed to show these qualities last week. 'We have to be careful, particularly in defence. Although we have two goals in hand, we can't take them lightly.' Guangdong coach Li Yong claimed after the first leg that his players were not at full fitness following a break after November's All China Games. Cordeiro admitted the mainlanders would be a force to be reckoned with after a week of training together. 'I'm sure it'll be a tougher match than last week's. Also, we played the away game first in the past few years but it's the opposite this year. Last year, we were successful in forcing Guangdong to a 2-2 draw before edging them 1-0 at home, but we need to play different tactics this year. We need to be focused for 90 minutes,' Cordeiro said. The Hong Kong camp received a boost when Sun Hei midfielder Gary McKeown was passed fit for today's clash. He missed last week's match after pulling a hamstring during training. He will be vying with South China's Szeto Man-chun and Shum Kwok-pui to partner Happy Valley playmaker Cheung Sai-ho in central midfield. Happy Valley's Keith Gumbs and South China's Au Wai-lun are expected to lead Hong Kong's attack. SAR coach Tsang Wai-chung is expected to continue fielding a side containing a balanced mix of Hong Kong and expatriate players. Last week, five Chinese players were included in the starting lineup. Tsang has led the SAR to the last two Cups since taking the helm two years ago. Guangdong captured six straight trophies before that.