A man known as the 'Yuen Long God of Gambling' was attacked by a gang of five on the mainland last year after he had won more than HK$100 million from Macau casinos in six months, a court heard yesterday. Siu Yun-ping told the Court of First Instance that his house had also been set on fire and his son received threatening phone calls. He said he was the only customer of casino dealer Wong Kam-ming, who as a result of his successes at the tables received more than HK$50 million in tips and commissions, and later become the target of a murder plot. Siu - previously described by prosecutors as the 'Yuen Long God of Gambling', or 'Lang Tou Ping' - was giving evidence at the trial of five alleged Wo Hop To triad members, who have been accused of involvement in the plan to kill Wong in May last year. The prosecution has alleged that the plan was ordered by Cheung Chi-tai - nicknamed 'Tsang Pau' - whom Siu yesterday described as the person in charge of the Chengdu gambling hall at the Sands Casino in Macau, one of the VIP halls he patronised during his winning streak. See Wah-lun, 30, Tang Ka-man, 31, Wong Chi-man, 26, Yeung Chun-kit, 22, and Chan Ho-leung, 35, have pleaded not guilty to charges including acting as triad members and conspiracy to cause grievous bodily harm. See, an alleged senior member of the group, is also charged with conspiracy to commit murder and soliciting nine people, including the four other defendants, to murder. Yesterday, Siu said he had won more than HK$100 million between August 2007 and January last year, playing baccarat in the Guangdong hall of The Venetian, the Wong Kam hall of the Lisboa and the Chengdu hall. He paid about HK$10 million to Wong in tips. Siu said he gambled with 'mud chips' - sold to gamblers on commission by intermediaries. He said he obtained the chips from Wong, whom he described as a long-term friend. Wong earned a commission every time he placed a bet regardless of whether Siu won or lost. If Siu won, he would be paid with a bank draft issued by a casino operator. Wong, as the dealer, was the middleman who helped to collect the draft. Siu told the court that Wong had earned HK$40 million to HK$50 million in commission from his winnings in the six months. He said he subsequently had a series of unpleasant experiences that left him very worried and unhappy. In mid-February last year, after the arson attack on his home and the calls to his son, he was attacked by five men after dinner with two friends in Shenzhen. He filed a report at Pat Heung police station a few days later. Cross-examined by defence barristers John Haynes, Siu said he told the police about his suspicion that the person in charge of a gambling hall had done something harmful to him, probably because he won a great deal of money. He also told them that he believed someone was jealous and suspected him of cheating. He thought that person had planned to kill Wong to force him to return the money. Siu said he drew a bank draft after the attack and instructed Wong to hand it to Cheung at the Sands casino's service counter at the Shun Tak ferry pier. But he instructed the bank to stop payment after he reported the assault to police. He also told the court that he had won the money fairly through sheer luck, although he had 'some tips of his own' in playing baccarat. The court heard earlier that Wong's abduction was ordered for May 15 last year in Pat Heung, but the plot was foiled when one of the gang - who has since given evidence in the trial under immunity - told the police. The original plan, the court heard, was to break Wong's arms and legs, but it was later decided that he should be murdered. The trial continues today.