According to people familiar with the matter, the lawsuit, which is still under seal, alleges that Mr. Armstrong and other people associated with his former cycling team knowingly violated their sponsorship agreement with the United States Postal Service when they allegedly instituted an organized doping program on the team.

WSJ: Lance Armstrong to Address Scandal

The agreement extends to firms that plan to deliver letters when the postal service is opened to competition on January 1st.

ECONOMIST: Pay in Germany