London: No evidence of corruption was found following an investigation into a mixed doubles match at this years Australian Open, the Tennis Integrity Unit (TIU) said yesterday.

A probe was launched after suspicious betting patterns were reportedly spotted during the first-round match, in which Lukasz Kubot and Andrea Hlavackova beat David Marrero and Lara Arruabarrena.

Responding to an inquiry from the Wall Street Journal, the TIU said corrupt activity had not been detected.

"While details of the investigation will remain confidential, no evidence of corrupt activity has been identified and no further action will be taken against any player involved in the match," said TIU spokesman Mark Harrison in a statement.

"TIU investigations not only root out corrupt practices, but also support players who are the subject of unproven speculation."