Barkevious Mingo, who plays for the NFL's Atlanta Falcons, was fired after he was arrested on one count of indecency with a child - sexual contact last week.
"After being made aware today of allegations involving Barkevious Mingo and gathering information on the matter, the Atlanta Falcons have terminated his contract," the Falcons said in a statement over the weekend.
Mingo turned himself in to authorities "on his own accord in consultation with his attorney," the Arlington Police said, and was released on $25,000 bond.
"The incident stems from an investigation that the department is conducting," the department said in a statement. "Due to the nature of the charges and age of the victim, no additional information is releasable at this time."
Attorneys for Mingo denied the allegations.
"At this stage, our side has very limited information. What we do know is these allegations are from over two years ago and are completely untrue. Mr. Mingo is the victim of a false claim, and we believe this is motivated by money or some other ulterior motive," the statement said.