The head of cricket's anti-corruption unit has revealed that 50 cases of possible wrongdoing are currently under investigation and are acting on intelligence gathered from players at last summer's World Cup.

Ahead of the 20th anniversary of one of cricket's darkest days - the fixed Centurion Test between South Africa and England, which led to Hansie Cronje being banned from the sport for life - the revelations from Alex Marshall, the general manager of the International Cricket Council’s ACU, are a reminder that the sport's fight against corruption is far from won.

Marshall told Telegraph Sport that players at the World Cup in England reported they had been approached prior to the tournament by suspicious individuals who tried to recruit them to fix in franchise Twenty20 leagues, although the ICC are confident that the tournament itself was clean after security measures - including having officers with each team - were tightened.

“We got very good feedback because we showed players pictures of current corruptors," Marshall said. "That then led to several reports from people playing in World Cup about contact they had from those corruptors about T20 events in the future.

“None of them related to approaches to fix in the World Cup. At this point as far as I know it looks as though the World Cup was clean.” Six international captains have reported approaches from corruptors since he took over the running of the unit in 2017, a point which will spark dark memories of the Cronje scandal, one of the most notorious incidents of corruption in cricket's modern era.