Andre Agassi says match-fixing in tennis "never even made my radar" while he was on tour.

The eight-time Grand Slam title winner, who retired in 2006, says in a phone interview with The Associated Press that he never had any brush with the sort of corruption that was alleged in recent media reports and has been the main topic of conversation at the Australian Open.

He also believes tennis's leaders will make sure match-fixing is not happening nowadays, because it "poses an existential threat to the very fabric of what sports is about."

The BBC and BuzzFeed News published reports this week saying tennis authorities failed to thoroughly investigate evidence of match-fixing involving more than a dozen players over the past decade. No players were named in the reports.