(photo via @natalieeguercio)

A man got knifed at Williamsburg club Output on Saturday night (12/27) and the victim in question was London Rene, boyfriend of VH1's Mob Wives star Natalie Guercio (who instagrammed the above image from Woodhull hospital):

"London was just sliced in the face," Guercio tweeted.

"We are heading to Hackensack medical center to have a plastic surgeon stitch him."

The busty reality actress also posted this picture on Instagram of Rene sedated and bandaged while in Woodhull Hospital, where he was first taken.

She said that Rene received more than "250 stitches."

The suspect fled the scene after the attack and was still on the loose Sunday night. - [NY Post]

Chromeo will be DJing at Output on Tuesday (12/30) and DJ Koze headlines the club's New Year's Eve festivities.