By Igor Lazorin, tass

The team behind Polish heavyweight Andrzej Wawrzyk are questioning the validity of the boxer's failed drug test.

It was revealed on Tuesday that Wawrzyk tested positive for a banned steroid. As part of the World Boxing Council's Clean Boxing program, he was randomly tested by drug testing agency VADA.

As a result of his positive test, Wawrzyk was removed from the scheduled fight with WBC heavyweight champion Deontay Wilder, which was scheduled for February 25th in the champion's home state of Alabama.

 The boxer's head trainer, veteran coach Fedor Lapin, does not trust the testing procedure - which saw his boxer come up positive for stanozolol.

"It is not clear where it had appeared," said Lapin. "He practically does not even use supplements, and it even clear with the structure of his body [that he's not using steroids]. He is not in any way associated with illicit drugs. I was just thinking about the credibility of VADA after the incident, and we will investigate," Lapon said.

According to the trainer, after it was revealed that Wawrzyk had failed a drug test, he was tested by a lab in Poland and passed. They plan to open up his B-sample to confirm or clear him of the initial finding.

Last May, Wilder was scheduled to make a world title defense bout Alexander Povetkin in Russia, but it was canceled due to the fact that traces of meldonium were found in the body of the Russian athlete during a random drug test administered by VADA. 

The  World Boxing Council conducted an investigation, but applied no sanctions against Povetkin. However, Povetkin was again failed a VADA administered drug test last month, when he was scheduled to fight Bermaine Stiverne in a final WBC eliminator. This time he tested positive for osterine, and there is another ongoing investigation by VADA.