Heavyweight boxer Jarrell "Big Baby" Miller says the failed drug test that forced him out of his fight against Anthony Joshua cost him around $30 MILLION!!!!
... and yeah, he still thinks about it all the time!!
Remember, Miller was the guy ORIGINALLY slated to fight AJ on June 1 at Madison Square Garden -- but when "Big Baby" failed the test, Joshua's people signed Andy Ruiz as a last-minute replacement.
And, we all know what happened next -- Ruiz beat the dog snot out of Joshua .