All competitors at UFC on FUEL TV 9 were tested for performance-enhancing drugs and drugs of abuse, and one failed for the latter.

The UFC confirmed Tuesday night that featherweight Robbie Peralta was flagged for marijuana metabolites and suspended following the event, which took place April 6 at Ericsson Globe Arena in Stockholm.

Peralta (16-4 MMA, 2-1 UFC) dropped a unanimous decision to Akira Corassani (11-3 MMA, 2-0 UFC) on the event’s main-card, which aired on FUEL TV.

“The UFC organization has a strict, consistent policy against the use of any illegal and/or performance-enhancing drugs, stimulants or masking agents,” the UFC’s statement read.

Peralta is suspended six months retroactive to the event. Additionally, he has agreed to attend drug rehabilitation classes and will be required to pass a drug test prior to his reinstatement, according to the statement. The negative drug test will be reported to the Association of Boxing Commissions.

The punishment mirrors that of another UFC fighter, Dave Herman, who completed his UFC-mandated rehab program and was reinstated earlier this month.

Peralta’s loss snapped a three-year, nine-fight win streak he earned on the regional circuit and in the UFC. He debuted in the octagon at UFC Fight Night 25 and earned a decision win over Mike Lullo. His next performance, which came at UFC on FOX 1, originally was ruled as a TKO win over Mackens Semerzier but was later changed to a no-contest when it was ruled that an accidental headbutt led to his win. He then rebounded with a first-round KO of Jason Young at UFC on FUEL TV 5.

For complete coverage of UFC on FUEL TV 9, stay tuned to the UFC Events section of the site.