On Saturday, Chennai Super Kings player Suresh Raina returned to India for personal reasons and will not take part in IPL 2020, said ESPNcricinfo.
On Friday, 10-12 members of CSK tested positive.
An India T20 specialist is among multiple members of the Chennai Super Kings contingent who have tested positive for COVID-19, forcing the IPL franchise to extend its quarantine period in Dubai and causing upheaval ahead of the event starting September 19.
The franchise is yet to issue a formal statement but a league source told PTI that the number of positive cases could be between 10 and 12.
"Yes, a right-arm medium fast bowler, who has recently played for India in white-ball cricket, along with a few staff members have tested positive for COVID-19. The number could be as high as 12," the senior IPL source said on conditions of anonymity.
The development has forced the Mahendra Singh Dhoni-led side to extend the quarantine period till September 1.
While there is panic in the BCCI's rank and file after this but it is understood that for the time being, there is no imminent threat to the league, shifted out of India this year due to the pandemic.
The scheduling convention followed in the IPL is two finalists of the previous year playing the inaugural game which would have been Chennai Super Kings and defending champions Mumbai Indians this season.
However, it's still not clear if CSK would be ready for the September 19 league opener.
The source revealed that all COVID-19 positive results came during day 1, 3 and 6 of testing after the contingent's arrival in Dubai.
"As far as we know, one of the senior-most officials of the CSK management, an official's wife, and at least two members of their social media team are also COVID-19 positive. There are couple of net bowlers who have also tested positive," he said.
According to the BCCI's Standard Operating Procedure (SOP), all those who test positive are mandated to go through an additional 14-day quarantine.
They can enter the bio-secure bubble only after returning negative in tests to be conducted after the extended isolation.
It is understood that all the members of the jumbo contingent, who tested positive, are "largely asymptomatic".
The biggest challenge will be tracing those who came in contact with these contingent members as it is understood that most of them contracted the virus in Chennai, where the team had a short training camp before heading to Dubai.
It is understood those who have tested negative will be allowed to enter the bio-bubble. However, the IPL source believes that the likelihood of the team's camp starting on September 1 is slim.
In the BCCI corridors, there was bewilderment over the team's decision to have a camp in Chennai before boarding the flight to Dubai. Tamil Nadu has recorded more than 4 lakh cases so far.
"CSK practised three days in Chennai out of the five days. Was there any tangible gain achieved from that camp?" a BCCI official said.