British anti-doping chiefs could contact French prosecutors to see if their doping investigation involves players who might be competing in the Rugby World Cup.
Nicole Sapstead, the chief executive of the national anti-doping agency Ukad, told MPs: "We have sufficient and excellent links with Interpol, Europol and our police where we can start to ask them for that kind of information and expect some reciprocal exchange of information.
"If there was any player that we felt was pulled into that issue then we would certainly be looking into it."
Sapstead's comments to the Culture, Media and Sport select committee came after Marseille prosecutors launched an investigation into several pharmacies in Toulon.
Reports in France alleged Toulon players had been supplied with anabolic steroids but Toulon owner Mourad Boudjellal angrily denied the allegations of doping made against the triple European champions.
