Cyclists are used to dealing with hostility from sociopath drivers, but last night a biker turned on one of his own. The FDNY and the NYPD tell us they have no information about the incident, but the NYPD tells NY1 that a cyclist in his 30s was stabbed in his chest and back. The stabbing happened around 7 p.m. on the corner of Ninth Avenue and 49th Street.

According to ABC 7, the two cyclists were deliverymen, and there is surveillance footage of the incident. Witnesses say "the two men started fighting and then one stabbed the other before riding away on his bike." The victim was rushed to the hospital and is expected to survive, while his assailant is reportedly still at large. Meanwhile, we hear that Andrea Peyser at the Post is busy dashing off a column titled Scary Stabby Cyclists Spoiling City's Serenity!