Alastair Cook has urged cricket's governing bodies to do even more to ensure that match-fixing is stamped out of the sport.
The England captain was voicing his concern after it was revealed this week that the International Cricket Council were investigating claims from former New Zealand batsman Lou Vincent that he was aware of up to 12 cricketers who had been involved in fixing games.
"If it's happened at all, it's happened in the past and obviously it's a bit more rife than we think," Cook told Sky Sports News. "It's a bit worrying for cricket.
"It's got to be stamped out. That's an incredibly hard task but the paying public need to know that the 22 players and the umpires are wholeheartedly trying to win a cricket match.
"If more of it gets unravelled, it's going to damage cricket but it has to be clean. We have to get it clean."
A match between Durham and Lancashire is believed to be one of the games involved in the investigation.