HONOLULU — A mixed martial arts fighter accused of punching his wife and fellow fighter has pleaded not guilty to second-degree assault in Hawaii.

Arnold Berdon appeared in Honolulu District Court for the first time on Monday since his arrest last week.

His wife, Rachael Ostovich Berdon, sought a temporary restraining order alleging he punched her in the head, face and ribs, fracturing her eye socket early last week after a night out with family.

She says she fell to the ground, gasped for air and escaped through a balcony.

She withdrew from her UFC fight against Paige VanZant scheduled for January because of her injuries.

Arnold Berdon’s attorney David Hayakawa declined to comment.

Berdon remains free after posting $75,000 bail. A preliminary hearing is scheduled for Dec. 18.