There are steps being taken to change anti-doping rules so positive tests are announced when they are reported, according to *The Daily Telegraph*.

The current rules require an announcement only when a player has been given a sanction, usually following a hearing that can take weeks or months. If no violation is found, no announcement is made. Players can also be suspended pending a hearing, with the suspension unknown to the public.

This has led to intermittent speculation about whether players have tested positive when they take time off the tour for injury or other stated reasons.

At the French Open, Varvara Lepchenko declined to comment on rumors that she tested positive for a small amount of the now-infamous banned substance meldonium, and whether her layoff from the tour between February and May was tied to that. She told reporters that a knee injury was the reason for her absence.

"I think we want to become as transparent as possible,” David Haggerty, the president of the International Tennis Federation, told the newspaper. “And that could mean making provisional suspensions known at the time."

The murkiness has also led to accusations that players have received unannounced bans. In April, Rafael Nadal filed a lawsuit against former French Minister for Health and Sports Roselyne Bachelot, who told a French television station that she believed the Spaniard had a seven-month layoff from the tour in 2012 because he tested positive.

A meeting of the governing bodies of tennis in Paris resulted in an agreement to adjust the rules, Haggerty said, though changes still have to be approved by the boards.

"[T]ennis is united on this," he said. "I wouldn’t be surprised to see an announcement after Wimbledon, because I think there are ways we can take away mystery and supposition."

The ITF, with funding from the ATP and WTA tours and the Grand Slams, is in charge of anti-doping in tennis.