RadioShack’s Yaroslav Popovych has been subpoenaed to testify before a U.S. Federal grand jury that is probing doping in the sport, largely focusing on his teammate Lance Armstrong.
Attorney Ken Miller said Popovych will appear before the federal panel Wednesday in Los Angeles, but gave no further details.
The 30-year-old Ukrainian has been a rider on three Armstrong teams since 2005, when they both rode for Discovery Channel through 2007. Both were members of Astana in 2009 before moving to RadioShack in 2010.
Federal prosecutors have called several associates of Armstrong in recent weeks.
Allen Lim, RadioShack’s exercise physiologist appeared before the grand jury, as did Stephanie McIlvain, a long-time friend of Armstrong.
McIlvain’s lawyer said she told jurors she never heard Armstrong admit taking banned performance-enhancing substances.
Investigators have been interviewing witnesses and collecting evidence in the investigation.
Testimony is kept secret and sessions are closed to reporters.
Armstrong has repeatedly denied all allegations that he ever took any sort of performance-enhancing substances or engaged in banned practices, such as blood-doping.