In the wake of Ryan Garcia's positive test for the performance-enhancing drug Ostarine, his rival Devin Haney released a statement addressing the situation.

Haney, who suffered the first loss of his career to Garcia by majority decision after being knocked down three times during their April 20 match, made his displeasure clear by writing, "People die in this sport. This isn't a joking matter."

Per ESPN's Mike Coppinger, a Voluntary Anti-Doping Association letter that was sent to all parties on Wednesday revealed that the first of two samples collected from Garcia on the day before the fight came up positive for the banned substance. Garcia has 10 days to request that his B-sample be tested.

While Haney doesn't see this situation as a laughing matter, Garcia posted a series of tweets after news broke of his positive test that indicated that he's not taking it seriously.

"Everybody knows that I don't cheat," Garcia said in a social media video. "Never taken a steroid. ... I don't even know where to get steroids. ... I barely take supplements. Big lies, I beat his ass."

In addition to his positive drug sample, Garcia also weighed in 3.2 pounds over the 140-pound limit. Not only did he have to fork over $1.5 million as part of a bet as well as $600,000 of his fight purse to Haney, but he was ineligible to win Haney's WBC super lightweight title.

Garcia put on arguably the best performance of his career, completely outclassing Haney from the opening bell. The win was expected to set up an eventual rematch for Haney's title if Garcia could make the weight, but it appears that won't be on the table after Garcia's positive test.