NFL warns players about steroid in meat (Yahoo Sports)

The NFL has warned players that some meat produced in China and Mexico may be contaminated with clenbuterol, a banned steroid. In a memo sent out by the league office, the NFL warned players that consuming large quantities of meat while visiting those countries may result in a positive test for clenbuterol. Clenbuterol has been banned in Mexico as a growth enhancer for cattle but is suspected to still be in use there.