By Igor Lazorin, tass

MOSCOW - The Russian anti-doping agency [RUSADA] says former world boxing champion Evgeny Gradovich has been banned for two years for breaking anti-doping rules.

The agency did not elaborate on exact fail date or what substance Gradovich tested positive for.

They have filed documents with the Russian Federation for the two-year ban

Gradovich's ban is backdated to June 30, 2015, a month after he lost his IBF featherweight title to Britain's Lee Selby, who still holds the belt.

The agency claims it advised Gradovich of the ban and the boxer continued to fight. He's had three bouts since the ban date, most recently on April 9, when he lost to Mexican fighter Oscar Valdez at the MGM Grand in Las Vegas as part of the Manny Pacquiao-Timothy Bradley undercard.

Gradovich's manager Egis Klimas, says the two year ban and RUSADA's claim of failing a doping tests is insane.

"This is complete nonsense. Evgeny just boxed," Klimas said.

This month, another Russian fighter, Igor Mikhalkin was stripped of his European light heavyweight title after a positive test for the banned substance meldonium.