A federal judge has dismissed Lance Armstrong's lawsuit against the U.S. Anti-Doping Agency, but says the cyclist can refile it within 20 days.

The seven-time Tour de France champion sued USADA on Monday in an attempt to prevent it from moving forward with charges that he used performance-enhancing drugs throughout much of his career.

U.S. District Judge Sam Sparks ruled just hours later. He criticized Armstrong's attorneys for filing an 80-page complaint the judge says seems more intended to whip up public opinion for his case than focus on the legal argument.

Sparks, however, did not decide on the merits of Armstrong's case and said he can refile his lawsuit.

Armstrong wanted Sparks to rule in his favor by Saturday, the deadline he faces to either accept sanctions from USADA or go to arbitration.