Roger Federer has called for the identities of players involved in match-fixing to be revealed as allegations of corruption sweep through the sport.
A match-fixing scandal overshadowed day one of the Australian Open on Monday after a joint investigation undertaken by BuzzFeed News and the BBC alleged tennis authorities failed to act upon repeated warnings regarding corruption involving a number of players on the professional circuit.
No names have yet been mentioned but 17-time grand slam champion Federer would like to see an end to the speculation.
"I would like to hear the name. I would love to hear names. Then at least it's concrete stuff and you can actually debate about it," Federer told reporters after his 6-2 6-1 6-2 first-round victory over Nikoloz Basilashvili.
"Was it the player? Was it the support team? Who was it? Was it before? Was it a doubles player, a singles player? Which slam? It's so all over the place. It's nonsense to answer something that is pure speculation.
"Like I said, it's super serious and it's super important to maintain the integrity of our sport. So how high up does it go? The higher it goes, the more surprised I would be, no doubt about it. Not about people being approached, but just people doing it in general.
"I just think there's no place at all for these kind of behaviours and things in our sport. I have no sympathy for those people."
Asked if tennis authorities could do more to prevent fixing, Federer said: "You can always do more. It's like I can always train more. There's always more you can do.
"So a story like this is only going to increase the pressure. Hopefully there's more funding to it. That's about it.
"Same as doping. You have to be super aggressive in both areas, no doubt about it."
Federer added: "Since we have the Integrity Unit, it puts more pressure on them that a story like this broke again.
"It's just really important that all the governing bodies and all the people involved take it very seriously, that the players know about it. There's more pressure on these people now maybe because of this story, which is a good thing."