Ryan Garcia flunked a drug test the day before his huge upset win over Devin Haney -- testing positive for a performance-enhancing substance -- but the star boxer is calling BS!
25-year-old Garcia was given a test on April 19 by the Voluntary Anti-Doping Association (VADA), the day before the Haney match, and was popped for Ostarine, according to boxing reporter Mike Coppinger.
The substance Ostarine aids in muscle growth and can increase strength.
Garcia quickly went to social media to adamantly deny the claims.