Spurs have expressed an interest in moving to the stadium in east London, despite being granted planning permission for their own new ground next to White Hart Lane.
And Sullivan has a 'bee in his bonnet' about it.
Riots? In a recent poll the majority of West Ham fans said they want to stay where they are, and not move away from Upton Park - so I'm sure they won't be thinking of popping along to White Hart Lane for "a riot".
What a load of utter BOLLOX!
He told the Mail: "It would be such a slap in the face to east London. If it happens, there will be real problems that could easily lead to civil unrest.
"I think there could be riots, such is the ill feeling between West Ham and Spurs and I know the police feel the same.
"I feel very let down by Tottenham. The way they do business is not right.
"They pinched Eidur Gudjohnsen off us after we brought him from Barcelona for talks. He just disappeared from the hotel. And the way they unsettled Scott Parker was appalling.
"Now they want to move into our borough of Newham. How would they like it if we suddenly set up a new home in Haringey. I'm flabbergasted by the cheek of it."