Dan Tan has faced charges of match fixing in Italy since 2011 and Hungary since 2013 as part of the Calcio scommesse scandal.
18 Facts About Dan Tan
Dan Tan was born on 29 April 1964, and did not graduate from secondary school.
Dan Tan returned after he was allowed to pay off his debts in instalments.
Dan Tan has a young son and his current wife, the Chinese national Guan Enmei, is thought to be his third.
Dan Tan served less than a year in jail in the early 1990s for illegal horse-racing and football bookmaking.
Dan Tan has admitted to having served as the director of the Singaporean company Exclusive Sports PTE Ltd, a rebranding of Football4U, which was founded by convicted match-fixer Wilson Raj Perumal.
Dan Tan later professed he withdrew his investments upon discovering their dodgy practices.
Dan Tan had been in business with Tan for three years.
The lack of funds scuttled the deal and, shortly afterwards, his associate Joseph Dan Tan Xie entered the Rovaniemi central police station and announced that Perumal was in Finland on a forged passport under the name Rajamorgan Chelliah.
In revenge for his own arrest, Perumal then fingered Dan Tan as placing bets for the syndicate using Asian-based online gambling sites and intermediaries in China.
Perumal's allegations against Dan Tan were first made public in a 28 July 2011, article in the German magazine Stern.
The SPF reported that Dan Tan was cooperating with their investigations and dispatched four SPF and CPIB detectives to Interpol's headquarters in Lyons, France.
Dan Tan had bet that there would be three or fewer goals during the match; when Barcelona took an early lead, his paid employees on the field sabotaged the stadium's lights to force a cancellation.
Dan Tan was the only foreigner indicted; the other 44 were all Hungarian players, coaches, managers, owners, or referees.
The Associated Press has reported "high-level" confirmation that Dan Tan was that person; The Straits Times and New Paper have confirmed Dan Tan's detainment.
However, ESPN has reported that the Singaporean network simply provided men with fluent English and liberal passport access to triad gangs based in mainland China; the Singaporean sports reporter Suresh Nair has said that Dan Tan was not a major part of the operation but only a middleman for behind-the-scenes bosses.
In 2012, FIFA's head of security Ralf Mutschke downplayed Dan Tan's importance, saying he had only "symbolic importance" and was probably not "as involved as everyone is thinking".
Dan Tan was released on appeal to the Court of Appeal in 2015.