Updated

Federal authorities say a Tennessee man accused of extorting a woman by posing as a University of Tennessee football player in an attempt to receive nude photos over Snapchat tried similar tactics against 11 other women and two girls.

News outlets report that 22-year-old Brandon D. Shanahan of Sweetwater pleaded not guilty Wednesday to 14 counts of extortion before a Knoxville federal magistrate judge.

Shanahan had already pleaded not guilty last month to one count of extortion after a female UT student told investigators she had been tricked into believing she was communicating with cornerback Cameron Sutton, deceived by claims she had drunkenly sent him nude photos and threatened with exposure if she didn't send more.

Court records show that other women came forward after the previous charge.