Adrian Peterson, already facing felony charges in Texas for child abuse, was accused in a separate incident involving another son who was 4 years old, KHOU-TV in Houston has reported. They're allegations the Minnesota Vikings running back's lawyer says were unfounded and more than a year old. The CBS affiliate KHOU cited text messages that reportedly include a photo of the son with an apparent head wound covered by bandages. 

Houston TV station KHOU reported Adrian Peterson was previously accused of child abuse in a separate incident involving another son who was 4 years old. Peterson was indicted by a grand jury on charges of reckless or negligent injury to a child on Friday.

The prosecution was aware of the June 2013 incident, a source familiar with the case told ESPN NFL Insider Adam Schefter.