A courtroom struggle is brewing between track coach Jon Drummond and the U.S. Anti-Doping Agency.
The conflict began when the USADA hit sprinter Tyson Gay with a one-year suspension for using a banned substance. Gay cooperated with officials in the matter.
Drummond -- facing disciplinary action for his role in the situation -- subsequently filed a defamation lawsuit against the USADA and Gay for suggesting that he encouraged the sprinter to use a cream that contained the substance in question.
Drummond has alleged that Gay lied to authorities to win a lesser suspension.
The USADA is calling the coach's lawsuit "baseless."