The International Cricket Council (ICC) has revealed that four international captains reported approaches to the governing body's Anti Corruption Unit between June 1, 2017 and May 31, 2018. The ICC, in its annual report, mentioned that it conducted 18 investigations between June 2017 and May 2018, 17 of which were launched after the arrival of ACU General Manager Alex Marshall on September 1 last year.

"There has been a pleasing increase in the number of players having the confidence to approach the ACU with reports of suspicious activity. Four international captains reported approaches during 2017-18 and every avenue was explored," said the ICC in the report. Out of 18 investigations, five have been concluded while charges were brought in four cases, claimed the governing body.