The Indian Premier League has named Pakistan fast bowler Mohammad Asif as the player who tested positive for a banned substance during random testing at the recent tournament.
"The Indian Premier League confirms the player in violation is Mohammad Asif," the league said in a statement.
Asif, 25, played for the Delhi Daredevils team in the IPL, a lucrative Twenty20 tournament that ran from April 18-June 1 and featured the world's top players.
IPL commissioner Lalit Modi had earlier declined to name the player, one of 14 who underwent randon tests.
Modi, a vice president with the Indian cricket board, said investigations would happen under set procedures.
"As of now we are at the first stage where one sample has tested positive," he said.
"The issue is now with the IPL's medical committee. The identity of the player will matter only after we check on the pre-declared drugs."
The nature of the substance has not been disclosed.
World cricket's governing body, the International Cricket Council, said it was aware of the developments.
"The ICC is proud of its status as a WADA signatory and will be closely monitoring the situation to ensure the correct action is taken by the BCCI," the body said in a statement from Dubai.
"The ICC retains a right of appeal if any penalty that may be imposed is inconsistent with the WADA Code."