BEIJING - The Chinese Football Association (CFA) is ready to probe into a drug abuse which reportedly can help young players reduce bone density in order to pass the bone tests, local newspaper reported on Friday.

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Rumor had it in February that a bone density-reducing drug was used among teenage players as they tried to pass the CFA's routine bone tests, sport newspaper Titan Weekly has reported.

The CFA has been adopting the testing method to crack down on age cheats in the national youth league and the youth national team.

When asked about the rumor, CFA official Tang Feng said the association didn't have any evidence yet but an investigation would go underway.

"Although we haven't received any report for confirmed cases, we will definitely go on probing into the matter," Tang told Beijing-based Jinghua Times.

"I just want to warn some coaches and parents that never cheat this way or it will ruin your children's health."