By Ruslan Chikov

Former WBA/WBO middleweight champion Felix Sturm wants Australian boxer Sam Soliman to admit he used performance enhancing drugs to prepare himself for last month's IBF final eliminator in Duesseldorf, which Soliman won with an upset twelve round unanimous decision. The president of the Federation of German Professional Boxers, Thomas Puetz, said Soliman's urine sample tested positive for an undisclosed banned "designer drug."

The positive drug test claims was called "absolute rubbish" and "unfounded allegations" by Soliman's manager David Stanley. Soliman can present his case at a hearing. Mr Puetz says he will inform Germany's National Anti-Doping Agency and the IBF.

The Soliman (43-11, 17 KOs) vs. Sturm (37-4-2, 16 KOs) clash could be changed to a "no-contest."

Sturm is sure that Soliman's "B" sample will also test positive for the same banned substance.

"That night passed and I still feel like I'm in a movie. Soliman was found to be doping.  We were obligated to do this test and the sample A was positive. Soliman, come on, stop lying to the people and [stop wasting their time], open the "B" sample. But even then [Soliman] will still probably argue that these substances were given to him by mistake," Sturm said to the Hamburg Evening News.