Snooker's governing body has threatened to suspend John Higgins over allegations he was willing to take bribes.
Footage of world champion John Higgins and his manager allegedly agreeing to accept £261,000 in return for arranging the outcome of four frames in matches was published in the News of the World.
On the day the World Championship final - the biggest match in snooker's calendar - begins, snooker chief Barry Hearn said he was "absolutely mortified".
The World Snooker chairman promised a decision within hours on the immediate future of Higgins, 34, and Pat Mooney in the sport.
Mr Hearn told BBC Radio Five Live's Sportsweek: "I've read the piece, I've seen the video, I would imagine I can't see any reason not to suspend him at this moment in time.
"We'll make a decision within the next 24 hours on how we're going to play it."
Higgins, a millionaire father-of-three from Wishaw, North Lanarkshire, was captured on camera shaking hands on the deal to fix matches, according to the newspaper.
The meeting was said to have taken place with undercover reporters posing as businessmen in Kiev after Higgins suffered a shock defeat to veteran Steve Davis.
The deal was set up by Mr Mooney, a board member of the World Professional Snooker and Billiards Association, it was claimed.
Higgins was not accused by the newspaper of any past indiscretions, and there were no suggestions he has been involved in fixing the results of any frames or matches to date.