By Adam S. Levy

Breaking Celebrity News Staff Writer

"20+ year career. 500 drug controls worldwide, in and out of competition. Never a failed test. I rest my case."

That's what cycling legend Lance Armstrong had to say in a tweet late Thursday, just days before 60 Minutes airs a bombshell interview with Tyler Hamilton, a former cycling peer who said he witnessed Armstrong inject himself with a banned substance called EPO on many occasions.

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"I saw it in his refrigerator, I saw him inject it more than one time,” Hamilton, an Olympic gold medalist in 2004, tells CBS.

Armstrong also tweeted a link to a website called Facts4Lance.com.

On it, Armstrong's attorney Mark Fabiani rips his client's accuser in a statement on the site, saying "Tyler Hamilton is a confessed liar in search of a book deal – and he