Law enforcement sources confirm the 24-year-old turned himself into authorities Wednesday morning in Manhattan.

Mauldin -- a 3rd round pick in the '15 Draft -- is accused of punching a man in the face at the Highline Ballroom during an altercation on April 2 after the other man allegedly spilled champagne on him.

If convicted, he faces up to a year in jail. Mauldin is due back in court in August.

In addition to the criminal case, Mauldin has also been sued in civil court by the alleged victim -- who says he suffered several broken bones in his face from the beating.

We reached out to the victim's lawyer, Glenn Race, but he had no comment.