UFC’s Tom Lawlor reveals what substance he tested positive for

Tom Lawlor has not been shy regarding his potential USADA anti-doping violation.

In fact, Lawlor has already revealed what banned substance was found in his system. The UFC light heavyweight said in a tweet Friday that he tested positive for ostarine in an out-of-competition drug test administered by USADA, the UFC’s anti-doping partner, on Oct. 10.

Lawlor’s potential violation was announced by the UFC in a statement Thursday. Lawlor was provisionally suspended in light of the drug test failure, but will still have the opportunity to appeal the suspension. USADA will also further investigate the case.

“USADA, the independent administrator of the UFC Anti-Doping Policy, will handle the results management and appropriate adjudication of this case,” the statement had read. “It is important to note that, under the UFC Anti-Doping Policy, there is a full fair legal review process that is afforded to all athletes before any sanctions are imposed. Consistent with all previous potential anti-doping violations, additional information or UFC statements will be provided at the appropriate time as the process moves forward.”

Ostarine is part of a group of banned substances called selective androgen receptor modulators (SARM), which are similar to anabolic agents.

UFC welterweight Tim Means was flagged by USADA earlier this year, failing a drug test for ostarine, as well. But, after a lengthy appeal process, Means settled with USADA and was given a reduced six-month suspension, as a supplement he used was contaminated with the banned substance.

Lawlor (10-6, 1 NC) is coming off a close decision loss to Corey Anderson at UFC 196 this past March. Prior to that, “Filthy” returned from a two-year layoff against Gian Villante and picked up an upset knockout win.