Seattle Mariners superstar Robinson Cano -- one of the best players in baseball --has accepted an 80 game suspension after testing positive for a banned substance.
However, Cano insists he did NOT take steroids or any other performance enhancing drug ... he insists he made a simple mistake when taking a prescribed medication.
"Recently, I learned that I tested positive for a substance called Furosemide, which is not a performance enhancing substance," Cano said in a statement.
"Furosemide is used to treat various medical conditions in the United States and the Dominican Republic.