Wallhead flagged by USADA for ostarine

It's been a rough few weeks for Jim Wallhead.

The UFC welterweight has been flagged for a potential violation of the USADA's anti-doping policy arising from an out-of-competition test conducted on Oct. 7, the promotion announced Wednesday.

An irate Wallhead has since taken to Facebook to reveal he tested positive for ostarine and aims to have his B sample screened. The development comes after an injury kept the Brit from facing Warlley Alves at UFC Fight Night 118 in Gdansk, Poland two weeks ago.

The 33-year-old was to vie for his first Octagon victory against Alves after dropping a decision to Jessin Ayari and tapping to Luan Chagas at UFC Fight Night 93 and UFC 212, respectively.