Two UFC 168 drug tests come back ‘inconclusive’
UFC 168 drug test results for featherweight Dennis Siver and welterweight Siyar Bahadurzada came back inconclusive, triggering a B sample test.

Two fighters from UFC 168 on Dec 28 of last year have had ‘inconclusive’ drug tests come back. Results for both featherweight Dennis Siver and welterweight Siyar Bahadurzada have triggered a B sample test. Neither fighter has previously tested positive for any drugs.
Nevada Athletic Commission chairman Francisco Aguilar told UFC Tonight’s Ariel Helwani that final results could be returned within two weeks.
An “inconclusive” result could signal many possibilities, ranging from the mishandling of a sample to a diluted sample. It does not necessarily indicate guilt.
Siver, 35, defeated Manny Gamburyan in a unanimous decision at UFC 168.
Bahadurzada, 29, dropped his second straight, losing to John Howard via unanimous decision.
Both fighters declined comment on the situation.
