No. 1 UFC middleweight title contender Yoel Romero was recently flagged by the United States Anti-Doping Agency (USADA) for a possible anti-doping violation after he was tested out-of-competition. The fighter's manager Malki Kawa tells UFC Tonight that they are planning on challenging the result of the alleged failed test.

According to the report, the Cuban wrestler is currently awaiting the results of his B sample from the USADA test. Kawa told UFC Tonight's Ariel Helwani that Romero passed all of his doping tests before and after the single alleged failed test.

We will keep you posted with developments on this story as they occur.