Prosecutors say Houston Rockets guard Kevin Porter Jr.’s alleged attack on his girlfriend at a New York City hotel left the woman with a fractured neck vertebra and a cut above her right eye. Prosecutors revealed details of the alleged assault at Porter’s arraignment Tuesday. The 23-year-old pleaded not guilty to felony assault and strangulation charges in connection with the incident Monday at the Millennium Hilton near the United Nations in Manhattan. He was not required to enter a plea during his brief court appearance. Porter is due back in court in Manhattan on Oct. 16. A message seeking comment was left with Porter’s lawyer.