Rios fails drug testing following Pacquiao loss

Things just can't seem to get right for Brandon Rios lately. Following a lopsided loss to Manny Pacquiao, Rios tested positive for a banned substance known as dimenthylamylamine. The substance is a dietary supplement used to help with weight loss. Rios did pass four tests prior to the Pacquiao fight but the positive testing came from a urine test directly after the fight. The supplement is said to be very common in alot of things.