The subpoena, which was issued by a grand jury in the US District Court of the Central District of California, demands documents and testimony from LeMond concerning his knowledge of the alleged practices of the four teams for which Armstrong has ridden since his return from cancer in 1998: US Postal Service, Discovery Channel, Astana, and Radio Shack.
LeMond gets his subpoena: http://www.cyclingnews.com/news/lemond-to-testify-in-armstrong-probe?cid=OTC-RSS&attr=news_headlines