South China completed a treble of domestic cup triumphs as Sun Hei suffered more heartache during yesterday's FA Cup final, which the Caroliners won 1-0 at Hong Kong Stadium. A 24th-minute own goal by Sun Hei defender Lau Chi-keung turned out to be the winner as the Caroliners collected their third knockout title of the season to add to their League Cup and Senior Challenge Shield successes. Lau deflected a corner from South China midfielder Poon Man-tik into his own net, so condemning Sun Hei to another cup final failure. Both teams ended with match with 10 players after Sun Hei midfielder Pau Ka-yiu and South China midfielder Aderbal Filho were sent off for fighting in an off-the-ball incident in the 60th minute. But in no way did the sendings off reflect the nature of the game with referee Chiu Sin-chuen doing a fine job keeping the flow. Sun Hei have so far lost three straight cup finals, leaving their players pondering whether they will ever win a trophy. They lost last month's Shield final after twice leading and were desperately unlucky during last season's League Cup final when they lost to Happy Valley after the latter scored a last-gasp equaliser before winning in extra-time 2-1. Sun Hei coach Khoo Liem Khen accepted defeat as part of the learning curve, although he admitted luck was not with his side again. 'We were a bit unlucky. For a start, we were missing a bit in defence and we had several players who were either injured or sick. We didn't hold it together that well,' said Khoo. 'It didn't help matters when you had players like [forward John] Moore and goalkeeper Ho Kwok-chuen sick with flu. We had a number of injuries as well.' While Khoo was left to reflect on another missed opportunity, South China centre-back Cristiano Cordeiro was delighted with his club's latest success. 'It's a great way to end the season because we are not in league contention,' said Cordeiro. 'Yes, it was a lucky goal. Sometimes in soccer, you need a bit of luck. But we created many chances after that goal and we could have scored three of four more. This is football and it was an interesting match. 'We played good football and so did Sun Hei. It was good to play at Hong Kong Stadium instead of Mongkok Stadium and you would have noticed that the game flowed more freely because the pitch was in good condition. We really wanted to win and we are all very happy to have done it again. South China attacked a lot and Sun Hei came back and attacked us, too. It made for good entertainment.' South China had several chances to add to the tally with skipper and right-back Yau Kin-wah having the best chance of the day four minutes before the break. Sent through by striker Au Wai-lun, Yau did well to round the advancing Ho but his finishing left a lot to be desired as he shot into the side netting. Sun Hei skipper Gary McKeown had a chance to equalise in the 66th minute but shot wide when he was put through in the box after Yeung Hei-chi did well to dispossess Yau. Moore then headed over the bar from close range and McKeown was in the thick of things again with a 30-yard pile-driver that whistled over. Sun Hei continued to storm forward in the final 10 minutes in search of an equaliser but South China held on resolutely to complete their eighth FA Cup win. Although Sun Hei lost their third final, they are still in league championship contention and are locked in a tense battle with Happy Valley.