The U.S. Anti-Doping Agency has brought new doping charges against Lance Armstrong, according to USA Today.

The new charges could cost Armstrong his seven Tour De France titles. Armstrong always has, and still denies ever doping.

From USA Today:

In the letter to Armstrong dated June 12, USADA states that numerous riders, team personnel and others will testify based on observing Armstrong allegedly take performance enhancing drugs or through his admissions of doping to them. USADA alleges that he used EPO, blood transfusions, testosterone and cortisone from before 1998 through 2005 and that he used EPO, testosterone and human growth hormone through 1996.

In a statement Armstrong said that the USADA "intends to again dredge up discredited allegations dating back more than 16 years." He added:

"I have never doped, and, unlike many of my accusers, I have competed as an endurance athlete for 25 years with no spike in performance, passed more than 500 drug tests and never failed one."

This comes after federal prosecutors dropped a case in February investigating whether he was doping during his time on the U.S. Postal Service team.