The Kiss Kiss hitmaker's aides were involved in a scuffle with Drake's team at Manhattan's W.i.P. venue in June (12) following a war of words over Brown's ex-girlfriend Rihanna.
The two stars are facing a $15 million (£9.38 million) lawsuit from executives at Entertainment Enterprises, Ltd., which owns the venue, and now it has emerged local cops have advised managers to keep the warring pair away from the building.
Barry Mullineaux, who co-owns the Greenhouse bar, which sits on top of W.i.P, tells the New York Post, "We've definitely had our issues since (the) Drake and Chris Brown (incident). (Cops) are posted outside every night. They definitely would not want Drake or Chris Brown in the club - they've stated that."