Singapore's investigation of Mr. Tan "is a good start" but tougher action needs to be taken against the alleged match-fixers, said Declan Hill, an academic and investigative journalist who has reported extensively on global match fixing.

WSJ: Singapore Says Suspect Is Helping Soccer Probe

" Tan says there were no nasty surprises on the big screen, thanks to a "good crew with a common vision.

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Singapore's investigation of alleged ringleader Dan Tan Seet Eng and contribution to the arrest of Admir Suljic in Italy on Thursday, represent "a good start, " but tougher action needs to be taken against the alleged ring, said Declan Hill, an investigative journalist who has reported extensively on match-fixing.

WSJ: Singapore Steps Up Probe of Soccer Match-Fixing