Jon Fitch Yet another high-profile fighter has failed a drug test, adding to this year’s rapidly expanding list of offenders. The California State Athletic Commission today said onetime UFC and WSOF welterweight title challenger Jon Fitch  (26-7-1) was flagged for an “adverse result” following a pre-fight drug test in connection with this past December’s WSOF 16, which aired on NBCSN. The CSAC, which oversaw the Dec. 13 event at McClellan Conference Center in Sacramento, Calif., performed a CIR test on Fitch’s urine sample and confirmed the result.