Hong Kong coach Tsang Wai-chung said his team won't resort to the violent style of play that helped Guangdong win last Sunday's ill-tempered first leg 2-0 as his team prepare for today's return leg of the Interport tournament at Hong Kong Stadium. Tsang said they aimed to win the match 'fair and square', without the help from the referee, in their bid to reign for the fourth successive year. 'I hope the competition will be staged in a friendly atmosphere. After all, it is the 25th anniversary of a tournament with a long tradition. Fairness and friendship should be the main elements,' said Tsang of the event introduced to promote ties between Hong Kong and Guangdong. Tsang made harsh remarks about poor refereeing by mainland referee Zhou Liang and malicious tackles from Guangdong players after their first-leg loss that left the SAR's hope of a fourth straight victory hanging by a thread. 'We need to play tough - we didn't have enough of that last Sunday and we paid the price for that - but we must not hurt our opponents deliberately. I don't want to make further remarks about the poor refereeing but I'm sure our referee [Cheung Yim-yau] is able to officiate the game fairly,' he said. Tsang was furious last Sunday after Zhou appeared to officiate in favour of Guangdong, whose players got away with yellow cards for brutal fouls, which included a two-footed tackle from behind by Chen Yongqiang on SAR striker Au Wai-lun. He said at the time: 'Never in my career, both as a player and as a coach, have I made direct criticism of a particular referee . . . in the second half some of the Guangdong players seemed to lose control of themselves and the referee simply did nothing.' Hong Kong's chances of turning around the two-goal deficit today as they will be missing Happy Valley defender Gerard Ambassa Guy and South China defender Cristiano Cordeiro. Guy has to serve a one-match ban for being sent off along with Guangdong's Zhou Jie last Sunday while Cordeiro picked up a broken nose in that game. Tsang said he had faith in his all-Chinese defence - formed by Lee Kin-wo, Ng Wai-chiu, Lee Wai-man and Leung Chi-wing - and believed they could rise to the occasion today. Hong Kong insist on fielding three foreign players, compared with an all-foreign side a couple of years ago. 'The absence of Cordeiro and JJ [Guy] have definitely affected us but we have to cope. We're using this tournament to prepare for next month's East Asian Championship qualifier [in Hong Kong] and we have to do without foreign players then. 'We could have picked two more foreign players to play in the defence but then we might have to play five foreign players including three in the attacks. What would the local players who are looking to play have thought if we had done that?' he asked. The five foreign players at Tsang's disposal, all strikers, are Rangers' Kim Pan-gon, Sun Hei's Cornelius Udebuluzor, Happy Valley's Keith Gumbs, South China's Rochi Putiray and Sun Hei's Marcio Anacleto, who was picked to replace Cordeiro. Tsang's makeshift starting XI sees winger Lee Kin-wo at right-back and striker Au in midfield. The two sides will go into extra time, in which the golden-goal rule applies, if Hong Kong draw level on aggregate. A penalty shootout will be used if the two sides are drawn on aggregate after extra time. Guangdong will be led by reigning Chinese Footballer of the Year Zheng Zhi and former national player Li Ming, whom Guangdong borrowed from Dalian Shide to strengthen their title bid.