Kiefer Sutherland rose to Brooke Shields’ defence Tuesday morning in downtown Manhattan — though she didn’t particularly request it, and the interloper allegedly suffered a broken nose from the 24 star, according to reports.

New York’s Daily News reports that Proenza Schouler womenswear designer Jack McCollough — a friend of Shields’ — interrupted her and Sutherland while they were speaking outside the SoHo nightspot SubMercer at 2 a.m. An agitated Sutherland then allegedly head-butted McCollough after the two men exchanged words.

Witnesses also say Shields was shoved but not hurt. All were out following the Met’s Costume Institute Gala. A rep for Shields said, “Nothing happened to her ... Jack did nothing inappropriate. It’s not clear what caused Kiefer to do what he did,” the rep told tmz.com.

McCollough told authorities that Sutherland “was drunk and obnoxious and wouldn’t back down or be logical,” and that the actor “pulled this stupid wrestling move like a teenager” before the head-butt.

Police and friends of Sutherland’s told the Daily News that Sutherland was intoxicated. The paper says that both Sutherland, 42, and Shields, 43, were expected to speak to the police yesterday.