Disgraced sports doctor Larry Nassar has been stabbed multiple times during an altercation with another inmate at a federal prison in Florida. Two people familiar with the matter tell The Associated Press the attack happened Sunday at United States Penitentiary Coleman in Florida. The people say Nassar is in stable condition. Nassar admitted sexually assaulting athletes at Michigan State University and at USA Gymnastics, including Olympic medalists. One of the people says Nassar was stabbed in the back and in the chest. The people spoke to the AP on the condition of anonymity.