Davydenko: Conversation with wife sparked betting probe?

"But not one day, (a) few months," he said.

Davydenko said he does not believe there is a match-fixing problem in the sport. He said he supports bans up to three years for anyone found guilty of serious corruption.

Leading betting agencies last year presented world tennis authorities with a dossier of matches involving irregular gambling patterns over the last five years. Of those, 45 are under investigation, including eight at Wimbledon.

The Association of Tennis Professionals, which runs men's tennis, this week formally approved a list of 15 recommendations from an independent review panel announced last month to combat potential for corruption.

The All England Club, which runs Wimbledon, is already implementing tougher restrictions on access to player locker rooms -- allowing only the player and a coach to enter -- during the tournament.

Five of the eight players who lost those Wimbledon matches were in this year's draw, which contains 18 players involved in the 45 matches under investigation.

Among the recommendations, players will be required to report any suspicious contact from gambling syndicates within 48 hours of being approached. Sanctions range up to life bans for players found guilty of match fixing.

Players and their families and entourages could also be banned from betting on matches.

Five players, all Italians, have been fined and suspended for betting on tennis.