A day after news broke that Alistair Overeem had failed a pre-UFC 146 drug test, there are still many more questions than answers.

Overeem and his camp have yet to say anything, and it is still unclear whether the UFC will have to book a new main event for its Memorial Day weekend show.

However, UFC heavyweight champion Junior dos Santos, the man Overeem is, at least as of Thursday afternoon, still scheduled to fight on May 26, broke his silence on Twitter to proclaim his drug-free status.

"I am professional and I'm champion without ever having used anything for better performance when you guys see me fighting that's really me," dos Santos wrote Thursday afternoon.

JDS added that, much like the rest of the MMA community, he is unclear what's next for him.

"About what happened to Overrem I don't know anything more than you guys know and for me It's between him and the Nevada Athletic Commission.

"I know a lot about me that's it!"

Keith Kizer, the Nevada State Athletic Commission executive director, told MMAFighting.com on Thursday that Overeem had a testosterone-to-epitestosterone ratio of 14:1 in his failed urine test, well above the the state's 6:1 limit.