Hope you have watched the hour-long video and read my earlier post: https://abn397.wordpress.com/2018/05/28/the-al-jazeera-report-analyzed-1/
Here we look at the Sri Lankan connection in more detail.
There is a fleeting reference to Jayananda Warnaweera, who played in Tests with some success as an off-spinner. He was the curator at Galle and was facing queries from the ICC as to some oddities in pitch behaviour. As the ICC and Sri Lankan authorities felt he was being non-cooperative, he was suspended for 3 years in early 2016:
https://www.wisdenindia.com/cricket-news/warnaweera-suspended-years/195673
Anyway he was out of the way by the time this report got under way. His successors (who appeared in the Al-Jazeera report along with Robin Morris) did talk about fixing the Galle Test against Australia in August 2016. This was the second Test of the series which Sri Lanka won 3-0.
In this case, the pitch was deliberately prepared to be bowler-friendly. The betting was probably on low scores and an early finish. The fixers had done their job well: the match got over early on the third day, in one of the shortest Tests in recent times. The scorecard:
In contrast, there was another Test at Galle against India in July 2017. This time they made the pitch more batsman-friendly. Indeed, India batted first and made 600. Sri Lanka collapsed abjectly and went on to lose the series 3-0. The betting was probably on a good score being made in the first innings. But no players were involved in fixing in these two Tests.
Now let us look at the dramatis personae from Sri Lanka:
Hasan Raza is the only name which most of us would recognize. All other former cricketers lesser known but are duly recorded in Cricinfo and other websites:
Robin Morris: http://www.espncricinfo.com/ci/content/player/31008.html
Tharindu Mendis: http://www.espncricinfo.com/srilanka/content/player/49681.html
Reasonable domestic player. Though not highlighted here, he is the elder brother of current ODI/T20I player Jeevan Mendis (BMAJ Mendis).
Jeevan Kulathunga: http://www.espncricinfo.com/srilanka/content/player/49394.html
Played in two T20Is
Dilhara Lokuhettige, who made a fleeting appearance: http://www.espncricinfo.com/srilanka/content/player/48487.html He appears in the scorecards as LHD Dilhara. Has played in a few ODIs and T20Is, some against India.
Tharanga Indika: http://www.espncricinfo.com/srilanka/content/player/502540.html
Limited career as a domestic player.
The Sri Lankan cricket authorities have acted against the four persons named above: http://www.espncricinfo.com/story/_/id/23630601/two-former-sri-lankan-players-suspended-spot-fixing-allegations
Dilhara has escaped for the moment.
Though this news report does not explicitly name Indika, he has also been suspended.
abn397 