At Bellator 159, Melvin Guillard (33-16-2 MMA, 0-2 BMMA) knocked out David Rickels (17-4 MMA, 11-4 BMMA) to pick up his first win in more than two years. The result won’t stick, however, after the Kansas Athletic Commission today overturned the result, suspended Guillard for a year and fined him $10,000.

The actions were taken as a result of “a positive test for a non-performance enhancing banned substance,” according to a release provided by the commission.

Guillard snapped a three-fight losing skid with the July 22 victory, which took place at Kansas Star Arena in Mulvane, Kan., and aired on Spike.

Trouble is nothing new for Guillard, who failed a post-fight drug test for cocaine after a 2007 UFC loss to Joe Stevenson. He missed weight in four of his five most recent bouts, including the fight with Rickels.

The complete release from the commission reads:

The Kansas Athletic Commission (KAC) has suspended the license of Mixed Martial Arts (MMA) fighter Melvin Guillard for one year and has fined Guillard $10,000 for the result of a positive test for a non-performance enhancing banned substance. In addition, Guillard’s July 22, 2016 bout with David Rickels will be changed to a “no contest”.

The KAC learned of the results August 3, 2016, and Guillard’s suspension will be applied retroactively to July 22, 2016. All fighters licensed by the KAC are subject to random drug testing and must follow the world anti-doping (WADA) code.

“The first and foremost job of the Kansas Athletic Commission is to protect the health and welfare of the fighters we are charged with regulating” said Adam Roorbach, head of the Kansas Athletic Commission. “Banned substances have no place in the world of combat sports, and their usage will not be allowed in the state of Kansas.”

For more on Bellator 159, check out the MMA Events section of the site.