The Indian Premier League officials who are investigating a doping case from the debut season of the lucrative Twenty20 competition are declining to release any details of the player involved.
IPL commissioner Lalit Modi, also a high-ranking officials with the Board of Control for Cricket in India, has confirmed a player was being investigated for a doping violation.
"We're now at the first stage, where the issue is now with the IPL's medical committee,'' Modi said.
The International Cricket Council has said it is monitoring the situation and wants the BCCI to deal with it in a "timely manner."
An Indian cricket web site, cricketnirvana.com, reported the doping violation on the weekend, alleging a player from the sub-continent was involved.
Many of the world's leading players were contracted to eight franchises involved in the first season of the IPL in April and May and two players from each team were tested after the matches.
"Two days ago, the IPL received a letter from a Swiss agency, mandated by (the World Anti-Doping Authority), which said one sample had tested positive," Modi was quoted as saying by the Press Trust of India.
"The IPL will now follow set procedures," added Modi, saying that the sample number needed to be matched with a player name and double-checked against details provided by that player if he was on any prescribed medication at the time.
Even if the player has not disclosed and granted exemption for using the drug found in the sample, he will have the right to request testing of his 'B' sample.
In case the 'B' sample also tests positive, the matter will be referred to IPL's drugs tribunal, which includes former Indian captain Sunil Gavaskar.