American boxer Claressa Shields, the undisputed world champion in three weight classes, has been suspended and is under investigation after testing positive for marijuana following her victory over heavyweight Danielle Perkins in Michigan.

Shields was suspended by the Michigan Unarmed Combat Commission on Thursday and was issued a related “show cause notice” by the WBO after the commission accused Shields of testing positive for marijuana following her win over Danielle Perkins on February 2 in her hometown of Flint.

Boxing star and Olympic gold medalist Claressa Shields was suspended by the Michigan Unarmed Combat Commission after testing positive for marijuana.

The boxer took to social media to address the temporary suspension, stating, "I've never smoked weed," as she awaits trial.

Undisputed world champion Claressa Shields has been suspended and is under investigation after she tested positive for marijuana following her heavyweight victory over Danielle Perkins in Michigan, per reports.

Shields' promoter, Dmitriy Salita, issued a statement Friday saying Shields has "an unwavering commitment to clean competition," and said he is "100% confident" Shields will be vindicated amid news that she has been suspended in Michigan after testing positive for marijuana after a fight in Flint earlier this month.

After undisputed world champion boxer Claressa Shields was suspended from competing in Michigan for testing positive for marihuana, her promoter Dmitriy Salita says he’s confident she will be cleared of wrongdoing once the investigation concludes.

Women's heavyweight boxing champion Claressa Shields denied ever consuming marijuana in response to her suspension for a positive test for the drug.